एपीए उद्धरण

Ley, W. (1968). Rockets, Missiles, and Men in Space. New York: The New American Library.

शिकागो स्टाइल उद्धरण

Ley, Willy. Rockets, Missiles, and Men in Space. New York: The New American Library, 1968.

एमएलए उद्धरण

Ley, Willy. Rockets, Missiles, and Men in Space. New York: The New American Library, 1968.