00249nam a2200097Ia 4500008004100000041000800041100001900049245003200068260003400100300001700134211209s2015    xx            000 0 und d  aeng  aG K PUBLISHERS  aGATE: CHEMICAL ENGINEERING   aNOIDAbG K PUBLICATIONSc2015  a8.48 + PP 18