The parasites of man, and the diseases which proceed from them; a textbook for students and practitioners - Leuckart, Rudolf, 1823 -1898 (Pentland, 1886)

The parasitic fungi of New Jersey - Schwarze, Carl Alois, 1886 - (New Jersey Agricultural Experiment Stations, 1917)

Le parasitisme et la symbiose - Caullery, Maurice, 1868 -1958 (Doin, 1922)

I parassiti vegetali delle piante coltivate od utili - Ferraris, Teodoro. (Sineo & Bo, 1913)

Part I. The living flora of West Virginia - Millspaugh, Charles Frederick, 1854 -1923 (Wheeling news litho. co, 1913)

Parte práctica de botánica del caballero Cárlos Linneo, que comprehende las clases, órdenes, géneros, especies y variedades de las plantas, con sus caracteres genéricos y especificos, sinónimos mas selectos, nombres triviales, lugares donde nacen, y propriedades - Linné, Carl von, 1707 -1778 (En la Imprenta Real, 1784)

Pasteur et le transformisme - Blaringhem, Louis, 1878 -1958 (Masson et cie, 1923)

Pathological plant anatomy - Küster, Ernst, 1874 -1953 (1913)

Pathologie interne - Cadéac, Célestin, 1858 -1952 (J.B. Baillière, 1908)

Pathologische Pflanzenanatomie. In ihren Grundzügen - Küster, Ernst, 1874 -1953 (G. Fischer, 1916)

Pauli Aeginetae Pharmaca simplicia - Brunfels, Otto, 1488 -1534 (Excudebat Georgius Ulricher Andlanus, 1531)

Paxton's Botanical dictionary; comprising the names, history, and culture of all plants known in Britain; with a full explanation of technical terms. New ed. including all the new plants up to the present year - Paxton, Joseph, Sir, 1803 -1865 (Bradbury, Evans, & co, 1868)

Pedanii Dioscoridis Anazarbei, De medicinali materia libri sex - Dioscorides Pedanius, of Anazarbos. (Apud Balthazarem Arnolletum, 1552)

Pedanii Dioscoridis anazerbei De materia medica libri quinque : ad fidem cadicum manuscriptorum - Sprengel, Kurt Polycarp Joachim, 1766 -1833 (Cnobloch, C. (Carl), 1778-1834, 1829)

Penjing plants from China : Buxus sinica, Ehretia microphylla, Podocarpus macrophyllus, Sageretia thea, Serissa foetida - United States. Animal; Plant Health Inspection Service. Plant Protection; Quarantine Programs. Biological Assessment; Taxonomic Support. (Biological Assessment and Taxonomic Support, Plant Protection and Quarantine, Animal and Plant Health Inspection Service, U.S. Dept. of Agriculture, 1996)

Pennsylvania farm journal - Darlington, J. L. (A.M. Spangler, 1852)

The Pennsylvania farm journal (A.M. Spangler, 1851)

Pennsylvania farm journal - Darlington, J. L. (A.M. Spangler, 1854)

Permanent and temporary pastures - Sutton, Martin John, 1850 -1913 (Simpkin, Marshall, Hamilton, Kent & Co, 1908)

Permanent and temporary pastures - Sutton, Martin John, 1850 -1913 (Simpkin, Marshall, Hamilton, Kent & Co., limited, 1911)

Pest control by chemical, biological, genetic, and physical means; a symposium. Chairman: E. F. Knipling ... presented at the meeting of the American Association for the Advancement of Science, Section 0 on Agriculture, December 26-31, 1964 - Knipling, E. F. (Agricultural Research Service, U.S. Dept. of Agriculture, 1966)

Pesticides documentation bulletin - National Agricultural Library (U.S.) (National Agricultural Library, U.S. Dept. of Agriculture, #c 1965-1969, 1965)