000
00300pam a2200121a 44500
082
_a
621.3132
_b
L26p6
100
_a
Langsdorf, Alexander S.
245
1
_a
PRINCIPLES OF DIRECT-CURRENT MACHINES
260
_a
New York
_b
Mcgraw-Hill
_c
1959
300
_a
xvii,363
964
_g
CIRC
997
_a
22172 C
999
_c
435890
_d
435890