एपीए उद्धरण

Davis, S. (1991). 2020 vision. New York: Fireside Book.

शिकागो स्टाइल उद्धरण

Davis, Stan. 2020 Vision. New York: Fireside Book, 1991.

एमएलए उद्धरण

Davis, Stan. 2020 Vision. New York: Fireside Book, 1991.