एपीए उद्धरण

Duignan, P. (1980). United States in the 1980's. Kalyani.

शिकागो स्टाइल उद्धरण

Duignan, Peter. United States in the 1980's. New Delhi: Kalyani, 1980.

एमएलए उद्धरण

Duignan, Peter. United States in the 1980's. Kalyani, 1980.