एपीए उद्धरण

Hollingsworth,M J, & Bowler,K. (1972). Principles and Processes of Biology. Chapman.

शिकागो स्टाइल उद्धरण

Hollingsworth,M J, और Bowler,K. Principles and Processes of Biology. London: Chapman, 1972.

एमएलए उद्धरण

Hollingsworth,M J, और Bowler,K. Principles and Processes of Biology. Chapman, 1972.