00438nam a22001577a 4500 876 876 191227b ||||| |||| 00| 0 eng d 621.56 E535 433 Emerick, Robert Henderson Basic refrigeration and air conditioning 1st ed. NewYork Prentince-Hall 1948 xii, 259 p. 20.00 Air conditioning BK 0 0 ddc 0 621_560000000000000_E535 0 3100 CL CL 1952-10-10 Asian publishing house 621.56 E535 00434 2019-12-27 BK 0 1 ddc 0 621_560000000000000_E535 0 3101 CL CL 1952-10-10 Asian publishing house 621.56 E535 00435 2019-12-27 BK