एपीए उद्धरण

Bullough, W. S. (1967). Evolution of differentiation. Academic Press.

शिकागो स्टाइल उद्धरण

Bullough, William S. Evolution of Differentiation. New York: Academic Press, 1967.

एमएलए उद्धरण

Bullough, William S. Evolution of Differentiation. Academic Press, 1967.