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=035    $$a 0010-072200000000909
=041    $$a ind
=082    $$a 330
=084    $$a 330 WAL U
=100    $$a Walton, Gary M.
=100    $$a Wykoff, Frank C.
=245    $$a Understanding economics today
=250    $$a 3rd.ed
=260    $$a Boston: $b IRWIN, $c 1991
=300    $$a xvii, 462 hlm.$b : ilus.;$c 24 cm.
=650    $$a Economics