APA引文

Shechan, A. (1972). Purnell's discovering nature. Purnell.

Chicago Edition Citation

Shechan, A. Purnell's Discovering Nature. London: Purnell, 1972.

MLA引文

Shechan, A. Purnell's Discovering Nature. Purnell, 1972.

警告：這些引文格式不一定是100％准確.