TY  - GEN
AU  - Dass,H.K.
TI  - Polytechnic mathematics for diploma level engineering courses
U1  - 510.711 22
PY  - 1992///
CY  - New Delhi
PB  - S. Chand and Company LTD.
KW  - Mathematics
KW  - BUEsh
KW  - Reading book
ER  -