एपीए उद्धरण

Bloom, A. L. (1969). Surface of earth. Prentice-Hall of India.

शिकागो स्टाइल उद्धरण

Bloom, Arthur L. Surface of Earth. New Jerse: Prentice-Hall of India, 1969.

एमएलए उद्धरण

Bloom, Arthur L. Surface of Earth. Prentice-Hall of India, 1969.