TY  - BOOK
AU  - Nag,N.K.,
AU  - Nag,S.K.
TI  - Mathematics
SN  - 978-81-272-4659-4
U1  - 510 
PY  - 2003///
CY  - Ludhiana
PB  - Kalyani publishers
KW  - Commerce
KW  - Mathematics
ER  -