TY  - BOOK
AU  - Dass H K
AU  - Verma Rajnish
TI  - Higher engineering mathematics
SN  - 9788121938907
U1  - 510.2462 
PY  - 2018///
CY  - New Delhi
PB  - S Chand and company limited
N1  - “It Includes bibliographical references (p.1711-1714) and index”
ER  -