A paper on the nomenclature of the parts of the head of insects - Newman, Edward, 1801 -1876 (Printed for the author, by R. Clay, 1834)

Papers and proceedings of the Royal Society of Tasmania - Royal Society of Tasmania. (The Society, 1903)

[Papers on Diptera] - Kowarz, Ferdinand, 1838 -1914 (Smithsonian Institution, 1879)

Papers on Diptera - Aldrich, John Merton, 1866 -1934 (Smithsonian Institution, 1913)

Parasites and parasitosis of the domestic animals, the zoölogy and control of the animal parasites and the pathogenesis and treatment of parasitic disease - Underhill, Benjamin Mott. (The Macmillan company, 1920)

Parasites : articles contributed to Wood's reference handbook of the medical sciences, new series, 1900-1904 - Ward, Henry Baldwin, 1865 -1945 (1904)

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

Parasitology - British Society for Parasitology. (Cambridge University Press, 1908)

Parasitology - British Society for Parasitology. (Cambridge University Press, 1909)

Parasitology - British Society for Parasitology. (Cambridge University Press, 1911)

Parasitology - British Society for Parasitology. (Cambridge University Press, 1912)

Parasitology - British Society for Parasitology. (Cambridge University Press, 1913)

Parasitology - British Society for Parasitology. (Cambridge University Press, 1914)

Parasitology - British Society for Parasitology. (Cambridge University Press, 1917)

Parasitology (Cambridge University Press, 1920)

Parasitology (Cambridge University Press, 1918)

Parasitology (Cambridge University Press, 1921)

Parks : a manual of municipal and county parks compiled as a result of a nation-wide study of municipal and county parks conducted by the Playground and Recreation Association of America, in co-operation with the American Institute of Park Executives at the request of the National Conference on Outdoor Recreation - American Institute of Park Executives. (A.S. Barnes & Co, 1928)

Pathogenic micro-organisms. A text-book of microbiology for physicians and students of medicine. (Based upon Williams' Bacteriology) - MacNeal, Ward J., 1881 -1946 (P. Blakiston's Son & Co, 1920)

Pathogenic micro-organisms, including bacteria and Protozoa; a practical manual for students, physicians and health officers - Park, William Hallock, 1863 -1939 (Lea brothers & co, 1905)

Pathogenic micro-organisms : including bacteria and Protozoa; a practical manual for students, physicians and health officers - Park, William Hallock, 1863 -1939 (Kimpton, 1908)

Pathogenic micro-organisms; a text-book of microbiology for physicians and students of medicine - MacNeal, Ward J., 1881 -1946 (P. Blakiston's son & co, 1914)

Pearls & parasites - Shipley, A. E. Sir, (Arthur Everett), 1861 -1927 (Murray, 1908)