000
002630000a22001210004500
245
_a
Textbook of servomechanisms
100
_a
West, J.C.
260
_a
London
_b
E.U.P.
_c
1953
300
_a
238 p., ill.
080
_a
621-52
_b
W4
041
_a
EN
942
_c
BK
999
_c
52445
_d
52445