APA-referens (7:e uppl.)

Hrvey, L. D. D. (2000). Global warming: The hard science. Prentice.

Chicago-referens (17:e uppl.)

Hrvey, L. D Danny. Global Warming: The Hard Science. New York: Prentice, 2000.

MLA-referens (9:e uppl.)

Hrvey, L. D Danny. Global Warming: The Hard Science. Prentice, 2000.