एपीए उद्धरण

Fowler , J. M. (1975). Energy and the environment. McGraw - hill book company.

शिकागो स्टाइल उद्धरण

Fowler , John M. Energy and the Environment. New York: McGraw - hill book company, 1975.

एमएलए उद्धरण

Fowler , John M. Energy and the Environment. McGraw - hill book company, 1975.