एपीए उद्धरण

Eldon D. Enger. (2003). Concepts in Biology. New York: McGraw- Hill.

शिकागो स्टाइल उद्धरण

Eldon D. Enger. Concepts in Biology. New York: McGraw- Hill, 2003.

एमएलए उद्धरण

Eldon D. Enger. Concepts in Biology. New York: McGraw- Hill, 2003.