LDR 00000cam a22      c 4500
001 ABjL
005 20250510180054.0
007 t|
008 220428         xx            00  0 eng d
020    |a0486229505
084    |a507.8 GRA
100 1  |aGraf. Rudolf F.|4http://id.loc.gov/vocabulary/relators/ctb
245 10 |aSafe and simple electrical experiments /|cby Rudolf F. Graf.
264  1 |aNew York :|bDover,|c1973.
300    |a[10], 117 p.|bill.|c27 cm.
334    |bmono
336    |atext|btxt
337    |aunmediated|bn
338    |avolume|bnc
500    |a164 illustrations--Cover
650  4 |aScience|xExperiments|xHandbooks, manuals, etc.
690    |aPhysics
690    |a物理