APA引文

Heilbroner, R. L. (1968). The Economic Problem. Prentice-Hall of India.

Chicago Edition Citation

Heilbroner, Robert L. The Economic Problem. New Jersey: Prentice-Hall of India, 1968.

MLA引文

Heilbroner, Robert L. The Economic Problem. Prentice-Hall of India, 1968.

警告：這些引文格式不一定是100％准確.