TY  - BOOK
AU  - Yadav, M. S.
TI  - Encyclopaedia of teaching of science vol. 2: Modern methods of science teaching in secondary schools
SN  - 81-261-0494-5
U1  - R375.503 
PY  - 2000///
CY  - New Delhi
PB  - Anmol Publications
ER  -