TY  - BOOK
AU  - Dave, P N (Ed.)
AU  - Gupta, Daljit (Ed.)
ED  - National Council of Educational Research and Training (New Delhi)
TI  - Operations blackboard: essential facilities at the primary stage: norms and specification
U1  - 372.2410954 21st
PY  - 1988///
CY  - New Delhi
PB  - NCERT
KW  - Blackboards; Teaching-Aids and devices; Schools-Furniture, equipment, etc
ER  -