APA (7th ed.) Zitazioa

Price, B. P. (1975). World sources of energy. Macdonald Educational.

Chicago Style (17th ed.) Zitazioa

Price, Brian P. World Sources of Energy. London: Macdonald Educational, 1975.

MLA (9th ed.) Zitazioa

Price, Brian P. World Sources of Energy. Macdonald Educational, 1975.