Não informado. (1972). Egyptian Journal of Animal Production. Egyptian Society of Animal Production, National Information and Documentation Centre.
Chicago-referens (17:e uppl.)Não informado. Egyptian Journal of Animal Production. Cairo: Egyptian Society of Animal Production, National Information and Documentation Centre, 1972.
MLA-referens (8:e uppl.)Não informado. Egyptian Journal of Animal Production. Egyptian Society of Animal Production, National Information and Documentation Centre, 1972.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.