एपीए उद्धरण

Heather,Ken. (2002). The economics of industries and firms. Pearson Education Ltd.

शिकागो स्टाइल उद्धरण

Heather,Ken. The Economics of Industries and Firms. Harlow: Pearson Education Ltd, 2002.

एमएलए उद्धरण

Heather,Ken. The Economics of Industries and Firms. Pearson Education Ltd, 2002.