एपीए उद्धरण

Koteswara Rao,M V R. (2004). Energy resources: :conventional and non conventioal. BS Publications.

शिकागो स्टाइल उद्धरण

Koteswara Rao,M V R. Energy Resources: :conventional and Non Conventioal. Hydrabad: BS Publications, 2004.

एमएलए उद्धरण

Koteswara Rao,M V R. Energy Resources: :conventional and Non Conventioal. BS Publications, 2004.