Gaya APA

Piehler, T, F. et al (2012). Substance Use Progression from Adolescence to Early Adulthood: Effortful Control in the Context of Friendship Influence and Early-Onset Use . : Business Media.

Gaya MLA

Piehler, Timothy, F.. et al. "Substance Use Progression from Adolescence to Early Adulthood: Effortful Control in the Context of Friendship Influence and Early-Onset Use". : Business Media, 2012. e-journal.