APA引文

Terzian, Y., & Bilson, E. (1997). Carl Sagan's universe. Uty.Press.

Chicago Edition Citation

Terzian, Yervant, and Elizabeth Bilson. Carl Sagan's Universe. Cambridge: Uty.Press, 1997.

MLA引文

Terzian, Yervant, and Elizabeth Bilson. Carl Sagan's Universe. Uty.Press, 1997.

警告：這些引文格式不一定是100％准確.