Cita APA (7th ed.)

Marder, A. R., & Stephenson, E. T. (1981). Energy efficient. The Metallurgical Society of AIME.

Cita Chicago (17th ed.)

Marder, A. R., i E. T. Stephenson. Energy Efficient. Nueva York: The Metallurgical Society of AIME, 1981.

Cita MLA (9th ed.)

Marder, A. R., i E. T. Stephenson. Energy Efficient. The Metallurgical Society of AIME, 1981.