एपीए उद्धरण

Felix Gilbert. (1991). The end of the European era, 1890 to the present. New York: W. W. Norton.

शिकागो स्टाइल उद्धरण

Felix Gilbert. The End of the European Era, 1890 to the Present. New York: W. W. Norton, 1991.

एमएलए उद्धरण

Felix Gilbert. The End of the European Era, 1890 to the Present. New York: W. W. Norton, 1991.