Sudman, S., & Blair, E. (1998). Marketing research: A problem-solving approach. McGraw-Hill.
Chicago-referens (17:e uppl.)Sudman, Seymour, och Edward Blair. Marketing Research: A Problem-solving Approach. Boston: McGraw-Hill, 1998.
MLA-referens (9:e uppl.)Sudman, Seymour, och Edward Blair. Marketing Research: A Problem-solving Approach. McGraw-Hill, 1998.