Stebbing, L. S. (1939). Thinking to some purpose. Penguin Books.
Chicagoスタイル(17版)引用形式Stebbing, L. Susan. Thinking to Some Purpose. Harmondsworth: Penguin Books, 1939.
MLA(8版)引用形式Stebbing, L. Susan. Thinking to Some Purpose. Penguin Books, 1939.
警告: この引用は必ずしも正確ではありません.