Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

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