एपीए उद्धरण

Kogent Solution. (2010). Excel 2007 in simple steps. Dreamtech.

शिकागो स्टाइल उद्धरण

Kogent Solution. Excel 2007 in Simple Steps. New Delhi: Dreamtech, 2010.

एमएलए उद्धरण

Kogent Solution. Excel 2007 in Simple Steps. Dreamtech, 2010.