TY  - BOOK
AU  - Hougen, O A 
AU  - Ragatz, R A 
AU  - Watson, K M 
TI  - Chemical Process Principles Part -1 Material and Energy Balances 
SN  - 9788123909530
U1  - 660.28 
PY  - 2004///
CY  - New Delhi
PB  - CBS Publishers and Distributors
ER  -