00335nam a2200109Ia 4500008004100000020001800041040003800059100001900097245004400116250000800160260005700168211231s9999    xx            000 0 und d  a81-7808-942-4  cJayakar Knowledge Resource Centre  aPita, Edward G 0aAir conditioning principles and systems  a4th  bPearson Education (Singapore) Pte. Ltd.aDelhic2003