Lua APA (7ú heag.)

.Cullingworth, J. B. (1990). Energy, land, and public policy. Transaction Publishers.

Lua i Stíl Chicago (17ú heag.)

.Cullingworth, J. B. Energy, Land, and Public Policy. New Brunswick, U.S.A.: Transaction Publishers, 1990.

Lua MLA (9ú heag.)

.Cullingworth, J. B. Energy, Land, and Public Policy. Transaction Publishers, 1990.

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