Bell, G. d. (1970). The environmental handbook. New York: Ballantine Books, Inc.
Trích dẫn kiểu ChicagoBell, Garrett de. The Environmental Handbook. New York: Ballantine Books, Inc, 1970.
MLA引文Bell, Garrett de. The Environmental Handbook. New York: Ballantine Books, Inc, 1970.
警告:这些引文格式不一定是100%准确.