एपीए उद्धरण

A.C Chawala. (1978). Jounal of industry and trade. Trade fair authority of India.

शिकागो स्टाइल उद्धरण

A.C Chawala. Jounal of Industry and Trade. New delhi: Trade fair authority of India, 1978.

एमएलए उद्धरण

A.C Chawala. Jounal of Industry and Trade. Trade fair authority of India, 1978.