TY  - BOOK
AU  - Gupta,  Om Prakash
AU  - Gupta,  Om Prakash
TI  - Chemical engineering objective type questions and answers
AV  - 660 GUP 1981 
U1  - 660 GUP 1981 
PY  - 1981///
CY  - New Delhi
PB  - Khanna Publishers
KW  - Process Operation and Maintenance
ER  -