एपीए उद्धरण

Fry, W. G. (1970). Biology of the porifera: : symposia of the zoological society of london 25. Academic press.

शिकागो स्टाइल उद्धरण

Fry, W. G. Biology of the Porifera: : Symposia of the Zoological Society of London 25. New York: Academic press, 1970.

एमएलए उद्धरण

Fry, W. G. Biology of the Porifera: : Symposia of the Zoological Society of London 25. Academic press, 1970.