Tohutoro APA (7th ed.)

Ed. by Boal, G. A. (1969). Power system economics. Edward Arnold.

Tohutoru Kātū Chicago (17th ed.)

Ed. by Boal, G. A. Power System Economics. london: Edward Arnold, 1969.

Tohutoro MLA (9th ed.)

Ed. by Boal, G. A. Power System Economics. Edward Arnold, 1969.