Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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