APA引文

Edward O. Gangstad, & N/a. (1990). Natural Resource Management of Water and Land. New York: Van Nostrand Reinhold.

Trích dẫn kiểu Chicago

Edward O. Gangstad, và N/a. Natural Resource Management of Water and Land. New York: Van Nostrand Reinhold, 1990.

MLA引文

Edward O. Gangstad, và N/a. Natural Resource Management of Water and Land. New York: Van Nostrand Reinhold, 1990.

警告：這些引文格式不一定是100％准確.