TY  - BOOK
AU  - Bhola H S
ED  - National Council of Educational Research & Training. New Delhi
TI  - Effective use of display material in schools
U1  - 371.335 
PY  - 1963///
CY  - New Delhi
PB  - NCERT
KW  - Display materials
KW  - Schools
KW  - Visual aids
ER  -