APA引文

Ward, B. (1972). Only one earth: The care and maintenance of a small planet. Australia: Penguin Books.

Trích dẫn kiểu Chicago

Ward, Barbara. Only One Earth: The Care and Maintenance of a Small Planet. Australia: Penguin Books, 1972.

MLA引文

Ward, Barbara. Only One Earth: The Care and Maintenance of a Small Planet. Australia: Penguin Books, 1972.

警告：這些引文格式不一定是100％准確.