Cates, J. R., Ortiz, R., Shafer, A., Romocki, L. S., & Coyne-Beasley, T. (2012). Designing Messages to Motivate Parents to Get Their Preteenage Sons Vaccinated Against Human Papillomavirus.
Chicago-tyylinen lähdeviittausCates, Joan R., Rebecca Ortiz, Autumn Shafer, LaHoma Smith Romocki, ja Tamera Coyne-Beasley. Designing Messages to Motivate Parents to Get Their Preteenage Sons Vaccinated Against Human Papillomavirus. 2012.
MLA-viiteCates, Joan R., et al. Designing Messages to Motivate Parents to Get Their Preteenage Sons Vaccinated Against Human Papillomavirus. 2012.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.