Pechenik, J. A. (1997). A short guide to writing about biology (3rd ed.). New York: Longman.
Trích dẫn kiểu ChicagoPechenik, Jan A. A Short Guide to Writing About Biology. 3rd ed. New York: Longman, 1997.
MLA引文Pechenik, Jan A. A Short Guide to Writing About Biology. 3rd ed. New York: Longman, 1997.
警告：这些引文格式不一定是100％准确.