APA (7th ed.) Zitazioa

Guzman, O. (1987). Energy efficiency and conservation in: Mexico. London.

Chicago Style (17th ed.) Zitazioa

Guzman, Oscar. Energy Efficiency and Conservation in: Mexico. Boulder: London, 1987.

MLA (9th ed.) Zitazioa

Guzman, Oscar. Energy Efficiency and Conservation in: Mexico. London, 1987.