APA引文

Harland, W. B. (1982). Geologic time scale. Cambridge University Press.

Chicago Edition Citation

Harland, W B. Geologic Time Scale. London: Cambridge University Press, 1982.

MLA引文

Harland, W B. Geologic Time Scale. Cambridge University Press, 1982.

警告：這些引文格式不一定是100％准確.