एपीए उद्धरण

Roy,P N. (1986). International trade: Theory and practice. Wiley Eastern Limited.

शिकागो स्टाइल उद्धरण

Roy,P N. International Trade: Theory and Practice. New Delhi: Wiley Eastern Limited, 1986.

एमएलए उद्धरण

Roy,P N. International Trade: Theory and Practice. Wiley Eastern Limited, 1986.