एपीए उद्धरण

BPP Learning media. (2009). Economics/BPP Learning media. Viva books.

शिकागो स्टाइल उद्धरण

BPP Learning media. Economics/BPP Learning Media. New Delhi: Viva books, 2009.

एमएलए उद्धरण

BPP Learning media. Economics/BPP Learning Media. Viva books, 2009.