TY  - BOOK
AU  - Gupta; A.D.,Chug;Om P.,Garg;S.P.,Garg;S.K.
TI  - Topics in mathematics 
U1  - 510 G93T 
PY  - 1989///
CY  - New Delhi
PB  - Laxmi publication
KW  - Mathematics
ER  -