एपीए उद्धरण

Varadarajan,Dhulasi Birundha. (1993). Energy economics. Sterling Publishers Pvt Ltd.

शिकागो स्टाइल उद्धरण

Varadarajan,Dhulasi Birundha. Energy Economics. New Delhi: Sterling Publishers Pvt Ltd, 1993.

एमएलए उद्धरण

Varadarajan,Dhulasi Birundha. Energy Economics. Sterling Publishers Pvt Ltd, 1993.