APA引文

James, C. L. (1940). An outline of the principles of economics. New York: Barnes & Noble.

Trích dẫn kiểu Chicago

James, Clifford L. An Outline of the Principles of Economics. New York: Barnes & Noble, 1940.

MLA引文

James, Clifford L. An Outline of the Principles of Economics. New York: Barnes & Noble, 1940.

警告：这些引文格式不一定是100％准确.