एपीए उद्धरण

Viorst, J. (1967). The changing earth. New York: Bantam Books.

शिकागो स्टाइल उद्धरण

Viorst, Judith. The Changing Earth. New York: Bantam Books, 1967.

एमएलए उद्धरण

Viorst, Judith. The Changing Earth. New York: Bantam Books, 1967.