Iowa. State College of Agriculture and Mechanic, Atrs, Ames. Statistical Laboratory. Report. s.n.
Chicagoスタイル(17版)引用形式Iowa. State College of Agriculture and Mechanic, Atrs, Ames. Statistical Laboratory. Report. s.l: s.n.
MLA(9版)引用形式Iowa. State College of Agriculture and Mechanic, Atrs, Ames. Statistical Laboratory. Report. s.n.
警告: この引用は必ずしも正確ではありません.