00299nam a22001217a 4500020001800000040000900018082001500027100001800042245003200060250001600092260003700108650003200145  a9788177588811  cNUST  a621.56 DOS  aDossat Roy J.  aPrinciples of Refrigeration  a4th Edition  aIndia:bPearson Education,c2006  aPrinciples of Refrigeration