Não informado. (1969). Tropical animal health and production. Scottish Academic Press.
Chicago-referens (17:e uppl.)Não informado. Tropical Animal Health and Production. Edinburgh, Inglaterra: Scottish Academic Press, 1969.
MLA-referens (8:e uppl.)Não informado. Tropical Animal Health and Production. Scottish Academic Press, 1969.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.