TY  - GEN
AU  - Balasubramanian, P.
AU  - Mary, A. Arogia
TI  - Information sources and services
SN  - 9392594519    
U1  - 025.52 
PY  - 2022///
CY  - New Delhi
PB  - Ess Ess publications
KW  - Types of information
KW  - Reference sources
KW  - E resources
N1  - :Includes bibliographical references and index
ER  -