TY  - BOOK
AU  - Singh, Uttam Kumar.
AU  - Nayak, A. K.
TI  - Science education
SN  - 8171694314
U1  - CIR 371.3 Si617 2004 
PY  - 2004///
CY  - New Delhi
PB  - Roshan Offset Printers
KW  - Science
KW  - Study and teaching
ER  -