Die Papageien - Finsch, O. (Otto), 1839 -1917 (Brill, 1868)

Papéis avulsos do Departamento de Zoologia - São Paulo Departamento de Zoologia (A Secretaria, 1942)

Parasitology - British Society for Parasitology. (Cambridge University Press, 1916)

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

Parasitology (Cambridge University Press, 1921)

Parrots - Cuvier, Georges, baron, 1769 -1832 (Chatto & Windus, 1845)

Parrots in captivity - Lydon, A. F. (Alexander Francis) (George Bell and Sons, 1884)

Parrots in captivity - Lydon, A. F. (Alexander Francis) (George Bell and Sons, 1887)