00401nam a2200133Ia 4500082002000000100004000020245004100060250000800101260002600109300001400135500008100149500000500230700003200235  a658.83bB789.MR  aBoyd, Harper W. and Westfall, Ralph  aMarketing research; text and casesb  a3rd  aIllinoisbIrwinc1972  axv, 813p.  a"First edition published in 1956 and 4th ed. published in 1977 ; xii, 692p."  a  aWestfall, Ralph ; jt. auth.