TY  - BOOK
AU  - Gupta; A.D.,Gupta;S.P.,Yadav;C.S.,Bhola;K.K.
TI  - Topics in mathematics 
U1  - 512 G95T 
PY  - 1990///
CY  - New Delhi
PB  - Laxmi publications
KW  - Mathematics
ER  -