Scheier, Lawrence M.; Grenard, Jerry L. (1 April 2010). "Influence of a National Social Marketing Campaign on Adolescent Youth". Journal of Health Communication. 15 (3): 240–271. doi:10.1080/10810731003686580. PMID20432107. S2CID23753652.
Scheier, Lawrence M.; Grenard, Jerry L. (1 April 2010). "Influence of a National Social Marketing Campaign on Adolescent Youth". Journal of Health Communication. 15 (3): 240–271. doi:10.1080/10810731003686580. PMID20432107. S2CID23753652.
Scheier, Lawrence M.; Grenard, Jerry L. (1 April 2010). "Influence of a National Social Marketing Campaign on Adolescent Youth". Journal of Health Communication. 15 (3): 240–271. doi:10.1080/10810731003686580. PMID20432107. S2CID23753652.