Cita APA (7th ed.)

ebrary, Inc. (1992). The National energy modeling system. National Academy Press.

Cita Chicago (17th ed.)

ebrary, Inc. The National Energy Modeling System. Washington, D.C.: National Academy Press, 1992.

Cita MLA (9th ed.)

ebrary, Inc. The National Energy Modeling System. National Academy Press, 1992.

Atenció: Aquestes cites poden no estar 100% correctes.