Não informado. (1901). Bulletin. Iowa State College of Agriculture and Mechanic Arts.
Chicagoスタイル(17版)引用形式Não informado. Bulletin. Ames, Iowa: Iowa State College of Agriculture and Mechanic Arts, 1901.
MLA(8版)引用形式Não informado. Bulletin. Iowa State College of Agriculture and Mechanic Arts, 1901.
警告: この引用は必ずしも正確ではありません.