APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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