00431nam a2200181Ia 4500003000400000005001700004006001800021007000300039008004100042037001700083040001800100041001300118082001300131100001800144245005700162260000900219700002100228OSt20220926035116.0a|||||r|||| 00| 0ta220923b        |||||||| |||| 00| 0 eng d  cGeneral Book  aRTLcRTLbeng  2engaeng  aB283, J2  aModley Rudolf 0aPictographs and graphsb How to make and use them     c1952  a Lowenstein Dyno