00868pam a2200277 4500 4086505 BD-DhUL 20150115171634.0 730420s1974 njua 001 0 eng 73006823 0132470721 0132470640 (pbk.) DLC DLC DLC BD-DhUL TP492.7 .L32 621.56 LAE Langley, Billy C., Electric controls for refrigeration and air conditioning / B. C. Langley. NewJersey : Prentice-Hall, 1974. xi, 195 p. : ill. ; 26 cm. $7.95 (pbk.) Includes index. Refrigeration and refrigerating machinery Automatic control. Air conditioning Control. Heating Control. 7 cbc orignew 1 ocip 19 y-gencatlg ddc BK 31855 31855 0 0 ddc 0 621_560000000000000_LAE 0 NFIC 59985 DUSL DUSL GEN 2015-01-15 Purchased 621.56 LAE A267955 2015-01-15 2015-01-15 BK