000 00544nam a22001937a 4500
999 _c21990
_d21990
003 OSt
005 20190307005815.0
008 190119b ||||| |||| 00| 0 eng d
040 _aOSt
_bEng
_cOSt
_dOSt
082 _a020 / G271c
100 _a Geer, Helen Thornton.
_9118416
245 _aCharging systems /
_cHelen Thornton Geer.
260 _aChicago :
_bALA,
_c1955.
300 _axii, 177 p. ;
_bill. ;
_c23 cm.
504 _aIncludes Bibliography
508 _a400
650 _aCharging systems (Libraries).
_9118417
942 _2ddc
_cBK