एपीए उद्धरण

F W Zweifel. (1961). A handbook of biological illustration. Chicago: Univ. of Chicago.

शिकागो स्टाइल उद्धरण

F W Zweifel. A Handbook of Biological Illustration. Chicago: Univ. of Chicago, 1961.

एमएलए उद्धरण

F W Zweifel. A Handbook of Biological Illustration. Chicago: Univ. of Chicago, 1961.