Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1916)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1917)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1918)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1896)

Pamphlet - Canada. Department of Agriculture. Seed Branch. (1918)

[Pamphlets on agriculture in Guam] (s.n, 1905)

Pamphlets on silviculture (1899)

Papers and proceedings of the Royal Society of Tasmania - Royal Society of Tasmania. (The Society, 1874)

Papers and proceedings of the Royal Society of Tasmania - Royal Society of Tasmania. (The Society, 1879)

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

Park and cemetery - Haight, R. J. (Rufus J.) (R.J. Haight, 1898)

Part first of a supplement to the Cybele Britannica : to be continued occasionally as a record of progressive knowledge concerning the distribution of plants in Britain - Watson, Hewett Cottrell, 1804 -1881 (Printed for private distribution, 1860)

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)

Pasture grasses and forage plants, and their seeds, weeds, and parasites - Preston, Samuel P. (T. C. Jack, 1887)

Pastures and pasture plants - Toogood, William G. (Macmillan and co., ltd, 1897)

Pastures and pasture plants - Toogood, William G. (Toogood & Sons, 1925)

Patologia vegetale. Fanerogame parassite, mixomiceti, bacterii, ifomiceti od eumiceti (funghi) - Voglino, Pietro. (Unione tipografico-editrice [Gia ditta Pomba e c], 1905)

Patterson's numbered check-list of North American plants north of Mexico - Patterson, Harry N. (Harry Norton), 1853 -1919 (Patterson, 1892)

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)

Paxton's flower garden - Lindley, John, 1799 -1865 (1853)

Paxton's magazine of botany, and register of flowering plants - Paxton, Joseph, Sir, 1803 -1865 (Orr and Smith [etc.], 1849)

Pearls and pebbles; or, Notes of an old naturalist - Traill, Catherine Parr Strickland, 1802 -1899 (S. Low, Marston, 1895)

Pearls and pebbles; or, Notes of an old naturalist - Traill, Catherine Parr Strickland, 1802 -1899 (Briggs, 1894)

Pearls and pebbles, or, Notes of an old naturalist - Traill, Catherine Parr Strickland, 1802 -1899 (Wm. Briggs, 1895)

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

The perennial sow thistle and some other weed pests of 1908 - Ontario. Dept. of Agriculture. (Dept. of Agriculture, 1908)

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

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