Não informado. Iowa State College bulletin. Iowa State College of Agriculture and Mechanic Arts.
Style de citation Chicago (17e éd.)Não informado. Iowa State College Bulletin. Ames, Iowa: Iowa State College of Agriculture and Mechanic Arts.
Style de citation MLA (8e éd.)Não informado. Iowa State College Bulletin. Iowa State College of Agriculture and Mechanic Arts.
Attention : ces citations peuvent ne pas être correctes à 100%.