एपीए उद्धरण

Gardiner, B. (1990). Energy demands. London: Gloucester Press.

शिकागो स्टाइल उद्धरण

Gardiner, Brian. Energy Demands. London: Gloucester Press, 1990.

एमएलए उद्धरण

Gardiner, Brian. Energy Demands. London: Gloucester Press, 1990.