Cita APA (7a ed.)
ebrary, Inc, & Helm, J. L. (1990). Energy: Production, consumption, and consequences. National Academy Press.
Cita Chicago Style (17a ed.)
ebrary, Inc, y John L. Helm. Energy: Production, Consumption, and Consequences. Washington, D.C.: National Academy Press, 1990.
Cita MLA (9a ed.)
ebrary, Inc, y John L. Helm. Energy: Production, Consumption, and Consequences. National Academy Press, 1990.
Precaución: Estas citas no son 100% exactas.