00620nam a22001931  45000010008000000030008000080050017000160080041000330350023000740400013000970820017001101000021001272450054001482500013002022600109002153000030003244900052003546500020004063152966BD-DhUL20161107200459.0011217s1956    enka          000 0 eng d  a(OCoLC)ocm48621655  aZCUcZCU  a025.078bMEP  aMerger, Lawrence10aPunched card systems (manual) /cMerger, Lawrence  a2ndbed.  aLondon,b Macdonald and Evans for the Office Appliance and Business Equipment Trades Association,c1964.  a51 p. :billus. ;c20 cm.1 aThe manual of modern business equipment,vpt. 4  aLibrary science