एपीए उद्धरण

Bechtell, H. (1971). Theory of groups. Addison Wesley.

शिकागो स्टाइल उद्धरण

Bechtell, Homer. Theory of Groups. Massachusetts: Addison Wesley, 1971.

एमएलए उद्धरण

Bechtell, Homer. Theory of Groups. Addison Wesley, 1971.