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- Arribálzaga, Enrique Lynch,
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- Arribasplata Vargas, Marco Antonio
- Arribére, María A
- Arrieira, Rodrigo Leite
- Arrieta P, Dagoberto Manuel
- Arrieta, Diego
- Arrieta, Marina Patricia
- Arrighetti, Florencia
- Arrigoni degli Oddi, Ettore, 1867-1942
- Arrigoni, Pierfranco
- Arrigoni, Roberto
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- Arrington, D. Albrey
- Arrington, H. H.
- Arrington, L R
- Arrington, Laura G.
- Arrington, Lewis Roberts, 1919-
- Arrington, Richard
- Arrington, Tristan D
- Arriola, Axel H
- Arriola, Erasmo
- Arriola, Ígor Abba
- Arrizabalaga, Antoni
- Arrona-Ortiz, Jessica D
- Arrondeau, E.-Théodore
- Arrow, G. J. (Gilbert John), 1873-1948
- Arrowfield Nurseries.
- Arrowfield Nursery Company, Inc.
- Arrowood, Patricia C
- Arrowsmith, John, 1790-1873
- Arroyave, Jairo
- Arroyave, José Alejandro
- Arroyo Alfaro, Sandra Jackeline
- Arroyo, A. T.
- Arroyo, Beatriz.
- Arroyo, Daniel N.
- Arroyo, Frank
- Arroyo, I
- Arroyo, Juan
- Arroyo, Mary Kalin
- Arroyo, Sandy
- Arroyo-Cabrales, Joaquin
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- Arruda dos Santos, Iris Gabrielly
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- Arruda Furtado, Francisco de, 1854-1887
- Arruda Neto, João Dias de Toledo
- Arruda, A. S.
- Arruda, D. M.
- Arruda, Daniel Meira
- Arruda, Danielle C. B
- Arruda, Diego Aguiar
- Arruda, Eliane P. (Eliane Pintor)
- Arruda, Emília Cristina Pereira
- Arruda, Giovana Maria Tadaieski
- Arruda, Hugo
- Arruda, J. A.
- Arruda, Janine O.
- Arruda, Janine Oliveira
- Arruda, Jeferson Luis Steindorff de
- Arruda, Larissa Ferreira
- Arruda, Luana A. G.
- Arruda, M. S. P.
- Arruda, Maria de F.
- Arruda, Mauricio Papa De
- Arruda, Mércia Eliane
- Arruda, Michele Rodrigues
- Arruda, R. C. O.
- Arruda, Rafael
- Arruda, Rosani do Carmo de Oliveira
- Arruda, Rubens Paes de
- Arruda, Vanessa Santos de
- Arruda, Walquíria
- ARS Forage Grass and Pasture Workshop Raleigh, N.C.) 1991-
- ARS Forage Legume Workshop Saint Paul, Minn.) 1991-
- ARS Immunology Research Workshop Bethesda, Md.) 2003-
- ARS Research Planning Conference on Weed and Brush Control and Related Integrated Research on Rangelands College Station, Tex.) 1982-
- ARS Workshop on Improving the Photosynthetic Capability and Biological Conversion of Solar Energy by Crops Urbana, Ill.) 1975-
- Arsad, Sulastri
- Arsandaux, H
- Arsandaux, Henri, 1872-
- Arsenashvili, Eka
- Arsenault, André
- Arsenault, Arielle L
- Arsenault, David P
- Arsenault, Marius
- Arsenault, Mark A.
- Arsenault, Matthew P
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- Arshad, Aziz
- Arshad, M
- Arshad, Shahzeena
- Arshan, Kaleem
- Arshid, Shahzada
- Arslan, Atilla
- Arslan, Belgin
- Arslan, Dilara
- Arslan, Emine
- Arslan, Meryem
- Arslan, Ozkan
- Arslan, Zubeyde Filiz
- Arsuffi, Thomas L
- Artacho, Paulina
- Artaev, Oleg
- Artaev, Oleg N.
- Artal, Pedro
- Artaud, Soulange.
- Artaxo, Paulo
- Artchawakom, Taksin
- Artchwakom, Taksin
- Arteaga B, Luis Andrés
- Arteaga Najera, Gema L.
- Arteaga Ramírez, Ramón
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- Arteaga Sogamoso, Edgar
- Arteaga Weill, Juan Luis,
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- Arteaga, Gustavo Adolfo Herrera
- Arteaga, Juan Ramón Herrera
- Arteaga, Marcos
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- Arteaga, Robert
- Arteaga-Flórez, Catalina
- Artedi, Peter, 1705-1735
- Artelari, Rea
- Artemenko, Sergey
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- Arteta B., Reynaldo
- Arteta de Monteseguro, Antonio
- Arteta-Bonivento, Reynaldo
- Arthaber, Gustav von, 1864-
- Arthaud, Charles.
- Artheau, Malvina
- Arthington, Angela
- Arthington, Angela H
- Arthofer, Wolfgang
- Arthur A. Arenius (Nursery)
- Arthur A. Kirchhoff (Firm)
- Arthur B. Main (Firm)
- Arthur Bryant & Son.
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- Arthur C. Perrin (Firm)
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- Arthur Dings (Firm)
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- Arthur G. Lee (Firm)
- Arthur G. Lee (Firm),
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- Arthur H. Thomas Co.
- Arthur Harris & Son.
- Arthur J. Collins & Son.
- Arthur L. Mitchell (Firm)
- Arthur L. Norton (Firm)
- Arthur L. Watson (Firm)
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- Arthur Lee (Firm)
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- Arthur Seligo
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- Arthur Yates & Co.
- Arthur, Brother
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- Arthur, Alex R.
- Arthur, Anthony
- Arthur, David Leahy
- Arthur, Don R.
- Arthur, J M
- Arthur, Joseph Charles, 1850-1942
- Arthur, Review By: J C
- Arthur, Robert.
- Arthur, Rohan
- Arthur, Stanley Clisby.
- Arthur, Stephen
- Arthur, Stephen M.
- Arthur, Stephen W.
- Arthur, Valter
- Arthur, W. John
- Arthurs, Steven P.
- Arthurs, William
- Arthus Bertrand (Firm) publ. active 1800-1857-
- Arthus, Gotthard, 1568-
- Arthus, Maurice, 1862-1945
- Article
- Artico, Leonardo Luís
- Artigas Azas, Juan Miguel
- Artigas, Jorge N., 1929-
- Artigas, Luis Felipe.
- Artigas, Paulo de Toledo.
- Artioli, Luiz G. S.
- Artioli, Luiz Guilherme Schultz
- Artis, Edmund Tyrell, 1789-1847
- Artley, Donald K.
- Artman, C. E.
- Artman, Charles E. (Charles Enos), 1888-
- Artobolevskiĭ, V. M.
- Artois, Tom
- Artokhin, Konstantin Sergeevich
- Artoni, Roberto Ferreira.
- Artschwager, Ernst, 1889-1957
- Artur, Mariana Aline Silva
- Arturi, Marcelo Fabian
- Artuso, Christian
- Artz, Lena
- Artzner, Darrah.
- Arulprakash, R
- Arum, G.
- Arumdhati, Fayeza Shasliz
- Arumí, Jose L.
- Arumugam, Elangovan
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- Arumugam, P. T.
- Arumugam, R.
- Arumugam, S
- Arun, B.
- Arun, L. K.
- Arun, P. R.
- Aruna, V.
- Arunachalam, M.
- Arunachalam, P
- Arunachalam, S.
- Arunakumaren, Jerome
- Arunalakshmi, V.
- Arundal, Walter B
- Arundale, Wendy Hanford, 1945-
- Arunkumar, Laifrakpam
- Arunraj, Parappurakkal Thazhe
- Arunsang, Sathit
- Arup, Paul S.
- Arup, Ulf