एपीए उद्धरण

Polgar, S. Evolution and the Ills of Mankind. Voice of America.

शिकागो स्टाइल उद्धरण

Polgar, Stevan. Evolution and the Ills of Mankind. Washington: Voice of America.

एमएलए उद्धरण

Polgar, Stevan. Evolution and the Ills of Mankind. Voice of America.