APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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