TY  - BOOK
AU  - Hougen, O.A
AU  - Watson, M.K
AU  - Ragatz, R.O
TI  - Chemical Process Principles: Part 1 Material and energy balances
AV  - QA 471. H6 1954 
PY  - 1954///
CY  - New York
PB  - John Wiley & Sons
ER  -