TY  - BOOK
AU  - Sen, B. R
TI  - Encyclopaedia of teaching science
SN  - 8171699529
U1  - 371.102 SEN 
PY  - 2008///
CY  - New Delhi
PB  - Commonwealth Publications
KW  - Science--Study and teaching
KW  - Science--Study and teaching--Methodology
N1  - Includes bibliographical references and index
ER  -