机读格式显示(MARC)
- 000 00667nam a2200241 a 4500
- 008 110330s1957 gw b 001 0 eng d
- 040 __ |a DLC |c GAT |d DLC |d CcBjTSG
- 099 __ |a CAL 0220110184679m
- 245 14 |a Der Kontaktumformer / |c Erich Rolf.
- 260 __ |a Berlin : |b Springer, |c 1957.
- 300 __ |a ix, 549 p. : |b ill. ; |c 26 cm.
- 504 __ |a Includes bibliographical references and index.
- 650 _0 |a Electric contactors.
- 650 _0 |a Electric current converters.