00316cam a2200121ua 4500041001000000082001800010100002600028245006400054250001200118260004700130300001200177504000500189  aengh  a621.3bCHA/BA  aChapman, Major J M  .  aBasic electricity / cMajor J M Chapman.hTextual Documents  a1 / b.  aMumbai : bAsia Publishing House , c1967.  a545 ; .  a