Não informado. (1950). Iowa State College veterinarian. Iowa State College of Agriculture and Mechanic Arts.
Chicago-referens (17:e uppl.)Não informado. Iowa State College Veterinarian. Ames, Iowa: Iowa State College of Agriculture and Mechanic Arts, 1950.
MLA-referens (8:e uppl.)Não informado. Iowa State College Veterinarian. Iowa State College of Agriculture and Mechanic Arts, 1950.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.