एपीए उद्धरण

(1993). The world almanac and book of facts 1993. New York: St. Martin's.

शिकागो स्टाइल उद्धरण

The World Almanac and Book of Facts 1993. New York: St. Martin's, 1993.

एमएलए उद्धरण

The World Almanac and Book of Facts 1993. New York: St. Martin's, 1993.