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*1001 $aBeatty, William E.$_74057000
*24510$aMathematical relationships in business and economics$c[by] William E. Beatty.
*260  $a[Braintree, Mass.]$bD. H. Mark Pub. Co$c[1970]
*300  $axiv, 465 p
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*999  $aoai:nb.bibsys.no:999501107104702202$b2021-11-14T20:21:46Z$z999501107104702202
^