एपीए उद्धरण

Gershon, S. (2002). English upgrade: Workbook. Oxford: McMillan.

शिकागो स्टाइल उद्धरण

Gershon, Steven. English Upgrade: Workbook. Oxford: McMillan, 2002.

एमएलए उद्धरण

Gershon, Steven. English Upgrade: Workbook. Oxford: McMillan, 2002.