एपीए उद्धरण

Rao , B. V. (2006). World history: From early times to A D 2000. Sterling.

शिकागो स्टाइल उद्धरण

Rao , B V. World History: From Early Times to A D 2000. New Delhi: Sterling, 2006.

एमएलए उद्धरण

Rao , B V. World History: From Early Times to A D 2000. Sterling, 2006.