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