Não informado. (1938). Veterinary student. Iowa State College of Agriculture and Mechanic Arts.
Chicago-referens (17:e uppl.)Não informado. Veterinary Student. Ames, Iowa: Iowa State College of Agriculture and Mechanic Arts, 1938.
MLA-referens (8:e uppl.)Não informado. Veterinary Student. Iowa State College of Agriculture and Mechanic Arts, 1938.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.