TY  - BOOK
AU  - Chaudhri, M. M.
AU  - Lal, Harmesh 
TI  - Manual of low cost teaching aids
U1  - 371.33 
PY  - 1982///
CY  - New Delhi
PB  - Central Institute of Educational Technology
KW  - Educational Technology
KW  - Teaching-Aids and devices
N1  - HB
ER  -