Sudman, S., & Blair, E. (1998). Marketing research: A problem-solving approach. McGraw-Hill.
Παραπομπή σε μορφή Chicago (17η εκδ.)Sudman, Seymour, και Edward Blair. Marketing Research: A Problem-solving Approach. Boston: McGraw-Hill, 1998.
Παραπομπή σε μορφή MLA (9th εκδ.)Sudman, Seymour, και Edward Blair. Marketing Research: A Problem-solving Approach. McGraw-Hill, 1998.