एपीए उद्धरण

Pile, L. (2005). Intelligent business Intermediate Workbook. England: Pearson Education Limit.

शिकागो स्टाइल उद्धरण

Pile, Louise. Intelligent Business Intermediate Workbook. England: Pearson Education Limit, 2005.

एमएलए उद्धरण

Pile, Louise. Intelligent Business Intermediate Workbook. England: Pearson Education Limit, 2005.