(1966). Motivation. England: Penguin Book.
Trích dẫn kiểu ChicagoMotivation. England: Penguin Book, 1966.
MLA引文Motivation. England: Penguin Book, 1966.
警告:这些引文格式不一定是100%准确.
(1966). Motivation. England: Penguin Book.
Trích dẫn kiểu ChicagoMotivation. England: Penguin Book, 1966.
MLA引文Motivation. England: Penguin Book, 1966.