Dyfyniad APA

Lovins, A. B. (1977). Soft energy paths: Toward a durable peace. New York: Penguin.

Dyfyniad Arddull Chicago

Lovins, Amory B. Soft Energy Paths: Toward a Durable Peace. New York: Penguin, 1977.

Dyfyniad MLA

Lovins, Amory B. Soft Energy Paths: Toward a Durable Peace. New York: Penguin, 1977.

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