एपीए उद्धरण

Attar Chand. (1983). World energy order 1924-1983. Academic Pubs.

शिकागो स्टाइल उद्धरण

Attar Chand. World Energy Order 1924-1983. Academic Pubs, 1983.

एमएलए उद्धरण

Attar Chand. World Energy Order 1924-1983. Academic Pubs, 1983.