Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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