Cita APA (7th ed.)

Kumar, P. (2004). Information Sources and services (therory) and practics Vi- Vii. BRPC and LTD.

Cita Chicago (17th ed.)

Kumar, PSG. Information Sources and Services (therory) and Practics Vi- Vii. Delhi: BRPC and LTD, 2004.

Cita MLA (9th ed.)

Kumar, PSG. Information Sources and Services (therory) and Practics Vi- Vii. BRPC and LTD, 2004.