एपीए उद्धरण

Orians, G. H. (1973). The Study of Life: An Introduction to Biology. Boston: Allyn and Bacon.

शिकागो स्टाइल उद्धरण

Orians, Gordon H. The Study of Life: An Introduction to Biology. Boston: Allyn and Bacon, 1973.

एमएलए उद्धरण

Orians, Gordon H. The Study of Life: An Introduction to Biology. Boston: Allyn and Bacon, 1973.