एपीए उद्धरण

Foley, G. (1981). The energy question. New York: Pengiun.

शिकागो स्टाइल उद्धरण

Foley, Gerald. The Energy Question. New York: Pengiun, 1981.

एमएलए उद्धरण

Foley, Gerald. The Energy Question. New York: Pengiun, 1981.