APA引文

Lecomber, R. (1979). The econonics of natural resources. New York: The Macmillan Press.

Trích dẫn kiểu Chicago

Lecomber, Richard. The Econonics of Natural Resources. New York: The Macmillan Press, 1979.

MLA引文

Lecomber, Richard. The Econonics of Natural Resources. New York: The Macmillan Press, 1979.

警告：這些引文格式不一定是100％准確.