TY  - BOOK
AU  - Aggarwal, K.
AU  - Rao, K. Ratna
AU  - Malhotra, B.
TI  - Understanding social studies
SN  - 8120907256
U1  - 300 
PY  - 1993///
CY  - New Delhi
PB  - Pitambar Publishing Company Pvt. Ltd.
KW  - Social Science
ER  -