RT Journal Article SR Electronic T1 You Can't Put a Price Tag on A Survey Participant's Enjoyment JF Journal of Advertising Research JO J Advert Res FD WARC SP 254 OP 257 DO 10.2501/JAR-53-3-254-257 VO 53 IS 3 A1 Robert W. Walker A1 William A. Cook YR 2013 UL http://www.journalofadvertisingresearch.com/content/53/3/254.abstract AB