APA引文

Hillegas, M. R. (1967). future as nightmare. Southern Illinois University Press.

Chicago Edition Citation

Hillegas, Mark R. Future as Nightmare. London: Southern Illinois University Press, 1967.

MLA引文

Hillegas, Mark R. Future as Nightmare. Southern Illinois University Press, 1967.

警告：這些引文格式不一定是100％准確.