TY  - BOOK
AU  - Dasgupta,Mary Ann
AU  - Chatterjee,Khitish
ED  - National Book Trust (New Delhi, India),
TI  - Low-Cost, No-Cost Teaching Aids
SN  - 9788123720548 (pbk)
U1  - 371.33 23
PY  - 1997///, reprinted 2015
CY  - New Delhi
PB  - National Book Trust
KW  - Teaching
KW  - Aids and devices
N1  - Includes bibliographies and index
ER  -