एपीए उद्धरण

Singh, M. P. (2004). International encyclopedia of energy resources. Daya Publishing House.

शिकागो स्टाइल उद्धरण

Singh, M. P. International Encyclopedia of Energy Resources. Delhi: Daya Publishing House, 2004.

एमएलए उद्धरण

Singh, M. P. International Encyclopedia of Energy Resources. Daya Publishing House, 2004.