Kumar, P. (2004). Information Sources and services (therory) and practics Vi- Vii. BRPC and LTD.
Chicago-čujuhus (17. p.)Kumar, PSG. Information Sources and Services (therory) and Practics Vi- Vii. Delhi: BRPC and LTD, 2004.
MLA-čujuhus (9. p.)Kumar, PSG. Information Sources and Services (therory) and Practics Vi- Vii. BRPC and LTD, 2004.
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