एपीए उद्धरण

Soma Raju P. (1997). Basic of universal decimal classification: A practical workbook. Rajkamal publishers.

शिकागो स्टाइल उद्धरण

Soma Raju P. Basic of Universal Decimal Classification: A Practical Workbook. Visakapatnam: Rajkamal publishers, 1997.

एमएलए उद्धरण

Soma Raju P. Basic of Universal Decimal Classification: A Practical Workbook. Rajkamal publishers, 1997.