TY  - BOOK
AU  - Rao,Digumarti Bhaskara
TI  - International encyclopaedia of science & technology EducationInternational encyclopaedia of science & technology Education
SN  - 8171415482
U1  - 507 
PY  - 2000///
CY  - NewDelhi
PB  - Discovery
KW  - Encyclopaedia of Science
ER  -