00502pam a2200193 a 4500003000400000005001700004008000200021020001500023040000600038082001500044100002000059245004900079250001200128260004100140300001600181504005300197650003800250700002000288OSt20260529111505.0  a002421910X c 00a658.83 TUL1 aTull, Donald S.10aMarketing research : measurement and methods a4th ed. aNew York :bMacmillanaLondon c1987 axvi, 845 p. aIncludes bibliographical references and indexes. 0aMarketing research - Case studies1 aHawkins, Del I.