एपीए उद्धरण

Cosgrove, A. (2009). Premium (Workbook with key). Harlow: Pearson Longman.

शिकागो स्टाइल उद्धरण

Cosgrove, Anthony. Premium (Workbook With Key). Harlow: Pearson Longman, 2009.

एमएलए उद्धरण

Cosgrove, Anthony. Premium (Workbook With Key). Harlow: Pearson Longman, 2009.