Cita APA (7th ed.)

Houghton, J. (1997). Global warming: The complete briefing (2nd ed.). U. Pr.

Cita Chicago (17th ed.)

Houghton, John. Global Warming: The Complete Briefing. 2nd ed. Cambridge: U. Pr, 1997.

Cita MLA (9th ed.)

Houghton, John. Global Warming: The Complete Briefing. 2nd ed. U. Pr, 1997.