000
002970000a22001210004500
245
_a
Introduction to the unified theory of electromagnetic machines
100
_a
Say, M.G.
260
_a
London
_b
Pitman
_c
1971
300
_a
198 p., ill.
080
_a
621.313.8
_b
S3
041
_a
EN
942
_c
BK
999
_c
94511
_d
94511