एपीए उद्धरण

Asimov, I. (1979). Life and time. New York: Avon Books.

शिकागो स्टाइल उद्धरण

Asimov, Isaac. Life and Time. New York: Avon Books, 1979.

एमएलए उद्धरण

Asimov, Isaac. Life and Time. New York: Avon Books, 1979.