APA引文

Kaufmann, W. J. (1988). Universe (2nd ed.). W.H. Freeman.

Chicago Edition Citation

Kaufmann, William J. Universe. 2nd ed. New York: W.H. Freeman, 1988.

MLA引文

Kaufmann, William J. Universe. 2nd ed. W.H. Freeman, 1988.

警告：這些引文格式不一定是100％准確.