एपीए उद्धरण

The year book of world affairs. Volume 27, 1973. Stevens & sons.

शिकागो स्टाइल उद्धरण

The Year Book of World Affairs. Volume 27, 1973. London: Stevens & sons.

एमएलए उद्धरण

The Year Book of World Affairs. Volume 27, 1973. Stevens & sons.