Information Technology for ManagementEfraim Turban, Ephraim McLean, James Wetherbe, Ralph Westfall, Kelly Rainer · First published 1995Open the Tome
Contemporary American Marketing Readings on the Changing Market StructureHarper W Boyd Jr., Richard M. Clewett, Ralph Westfall · First published 1957Open the Tome
Marketing research - Text and CasesHarper W. ; Ralph Boyd Westfall · First published 1956Open the Tome