Não informado. Iowa State College bulletin. Iowa State College of Agriculture and Mechanic Arts.
Cita Chicago Style (17a ed.)Não informado. Iowa State College Bulletin. Ames, Iowa: Iowa State College of Agriculture and Mechanic Arts.
Cita MLA (8a ed.)Não informado. Iowa State College Bulletin. Iowa State College of Agriculture and Mechanic Arts.
Precaución: Estas citas no son 100% exactas.