एपीए उद्धरण

Rao,Palle Krishna. (2006). WTO text and cases. Excel Books.

शिकागो स्टाइल उद्धरण

Rao,Palle Krishna. WTO Text and Cases. New Delhi: Excel Books, 2006.

एमएलए उद्धरण

Rao,Palle Krishna. WTO Text and Cases. Excel Books, 2006.