Dyfyniad APA

International Institute for Applied Systems Analysis. Energy Systems Program Group, Häfele, W., Anderer, J., McDonald, A., & Nakićenović, N. (1981). Energy in a finite world: Report. Ballinger Pub. Co..

Dyfyniad Arddull Chicago

International Institute for Applied Systems Analysis. Energy Systems Program Group, Wolf Häfele, Jeanne Anderer, A. McDonald, and Nebojša Nakićenović. Energy in a Finite World: Report. Cambridge, Mass.: Ballinger Pub. Co., 1981.

Dyfyniad MLA

International Institute for Applied Systems Analysis. Energy Systems Program Group, et al. Energy in a Finite World: Report. Ballinger Pub. Co., 1981.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.