Soma Raju P. (1997). Basic of universal decimal classification: A practical workbook. Rajkamal publishers.
Čikaški stil citiranjaSoma Raju P. Basic of Universal Decimal Classification: A Practical Workbook. Visakapatnam: Rajkamal publishers, 1997.
MLA način citiranjaSoma Raju P. Basic of Universal Decimal Classification: A Practical Workbook. Rajkamal publishers, 1997.
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