TY  - BOOK
AU  - Nigam D S निगम डी एस 
TI  - Vigyan shikshan (Science teaching) विज्ञान शिक्षण 
AV  - 507.1 NID U 
U1  - 507.1 NID U 
PY  - 2007///
CY  - Panchkula 
PB  - Harayana sahitya akademi 
KW  - Science science teaching
KW  - Science teaching
KW  - India
UR  - http://sgvu.bestbookbuddies.com/cgi-bin/koha/opac-detail.pl?biblionumber=79201
ER  -