00370nam a2200109Ia 4500008004100000082001600041100005700057245008800114250001600202260003300218300000900251210430s9999    xx            000 0 und d  a660 H 853 C  aOlaf A. Hougen, Kenneth M. Watson, Roland A. Ragatz.  aChemical Process Principles: Material and Energy Balances, Part-1 /cOlaf A. Hougen  a2nd edition  aPHOTO COPYbPHOTO COPYc1956  a504P