Não informado. (1890). Colorado College studies. Scientific Society.
Chicagoスタイル(17版)引用形式Não informado. Colorado College Studies. Colorado Springs, Colo: Scientific Society, 1890.
MLA(8版)引用形式Não informado. Colorado College Studies. Scientific Society, 1890.
警告: この引用は必ずしも正確ではありません.