एपीए उद्धरण

(1990). American perspectives: The United States in the modern age. Washington: United States Information Agency.

शिकागो स्टाइल उद्धरण

American Perspectives: The United States in the Modern Age. Washington: United States Information Agency, 1990.

एमएलए उद्धरण

American Perspectives: The United States in the Modern Age. Washington: United States Information Agency, 1990.