Dyfyniad APA

Spoth, R., Trudeau, L., Guyll, M., Shin, C., & Redmond, C. (2009). Universal Intervention Effects on Substance Use Among Young Adults Mediated by Delayed Adolescent Substance Initiation.

Dyfyniad Arddull Chicago

Spoth, Richard, Linda Trudeau, Max Guyll, Chungyeol Shin, and Cleve Redmond. Universal Intervention Effects On Substance Use Among Young Adults Mediated By Delayed Adolescent Substance Initiation. 2009.

Dyfyniad MLA

Spoth, Richard, et al. Universal Intervention Effects On Substance Use Among Young Adults Mediated By Delayed Adolescent Substance Initiation. 2009.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.