APA aipamena

Khan, B. (2012). Non-conventional energy resources (2nd.). TMH Education.

Chicago Style aipamena

Khan, B.H. Non-conventional Energy Resources. 2nd. New Delhi: TMH Education, 2012.

MLA aipamena

Khan, B.H. Non-conventional Energy Resources. 2nd. TMH Education, 2012.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.