000 00420nam a22001457a 4500
999 _c12330
_d12330
008 210128b ||||| |||| 00| 0 eng d
082 0 0 _a621.3819
_bS5552
100 _91301
_aShields, John Potter
245 1 0 _aHow to build proximity detectors and metal locators
_cBy John Potter Shields
260 _aSlough
_bFoulsham
_c1966
300 _a128 p.
365 _d18.00
650 0 _aElectrical Engineering
942 _cBK