TY  - BOOK
AU  - Kalra,R.M.
AU  - Gupta,Vandana
TI  - Teaching of science: a modern approach 
SN  - 9788120345447
PY  - 2012///
CY  - New Delhi
PB  - PHI Learning
KW  - Science
KW  - Study and teaching
N1  - Includes bibliographical references and index
ER  -