APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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