Spencer, P. R. (1954). Progress on reading books. Chicago: Lyons and Carnahan.
シカゴスタイル引用形Spencer, Paul R. Progress On Reading Books. Chicago: Lyons and Carnahan, 1954.
MLA引用形式Spencer, Paul R. Progress On Reading Books. Chicago: Lyons and Carnahan, 1954.
警告: この引用は必ずしも正確ではありません.