Spencer, H. (1970). The principles of psychology. Gregg International Publishers Limited.
Chicagoスタイル(17版)引用形式Spencer, Herbert. The Principles of Psychology. Farnham: Gregg International Publishers Limited, 1970.
MLA(9版)引用形式Spencer, Herbert. The Principles of Psychology. Gregg International Publishers Limited, 1970.
警告: この引用は必ずしも正確ではありません.