National Academy of Engineering. Program Office & Helm, J. L. (1990). Energy: Production, consumption, and consequences. National Academy Press.
Чикаго стиль цитування (17-те видання)National Academy of Engineering. Program Office та John L. Helm. Energy: Production, Consumption, and Consequences. Washington, D.C.: National Academy Press, 1990.
Стиль цитування MLA (9-ме видання)National Academy of Engineering. Program Office та John L. Helm. Energy: Production, Consumption, and Consequences. National Academy Press, 1990.