Dyfyniad APA
Rai, G. (2006). Non - Conventional Energy Sources (4th ed.). Khanna Publishers.
Dyfyniad Arddull Chicago
Rai, G.D. Non - Conventional Energy Sources. 4th ed. New Delhi: Khanna Publishers, 2006.
Dyfyniad MLA
Rai, G.D. Non - Conventional Energy Sources. 4th ed. Khanna Publishers, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.