TY  - GEN
AU  - Tripathi, S.B.
AU  - Nayarfds, Sushma
AU  - Singh, Om Lata
TI  - ABD'S Laboratory skills mathematics: class IX
SN  - 8170634431
U1  - 510 
PY  - 2006///
CY  - New Delhi
PB  - Arya Book Depot
KW  - Mathematics
ER  -