MAP20070008666Churchill, Gilbert A.Marketing research : methodological foundations / Gilbert A. Churchill. — 4th ed. — Chicago [etc.] : The Dryden Press, cop. 1987XX, 896 p. ; 24 cmSumario: I. Marketing research, the research process and problem definition -- II. Determination of sources of information and research design -- III. Design data collection method and forms -- IV. Sample design and data collection -- V. Analysis and interpretation of data -- VI. The research report and the firm's marketing information system