National Academy of Engineering. Program Office & Helm, J. L. (1990). Energy: Production, consumption, and consequences. National Academy Press.
Citação do estilo Chicago (17ª ed.)National Academy of Engineering. Program Office e John L. Helm. Energy: Production, Consumption, and Consequences. Washington, D.C.: National Academy Press, 1990.
Citação MLA (9ª ed.)National Academy of Engineering. Program Office e John L. Helm. Energy: Production, Consumption, and Consequences. National Academy Press, 1990.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.