TY  - BOOK
AU  - Dasgupta, Mary Ann
TI  - Low-cost, No-cost Teaching Aids
SN  - 81 237 2054 8
U1  - 371.33  
PY  - 1999///
CY  - New Delhi
PB  - National Book Trust
KW  - Education
KW  - School - Teaching aids
ER  -