TY  - BOOK
ED  - Operation Research Group (New Delhi)
TI  - Evaluation of operation blackboard for Himachal Pradesh: draft report
U1  - 372.2410954 21st
PY  - 0000///[n.d]
CY  - New Delhi
PB  - ORG
KW  - Blackboards; Schools-Furniture, equipment etc
N1  - Submitted to the Department of Education, Ministry of Human Resource Development
ER  -