Dyfyniad APA

Sipsma, H. L., Ickovics, J. R., Lin, H., & Kershaw, T. S. (2013). The Impact of Future Expectations on Adolescent Sexual Risk Behavior.

Dyfyniad Arddull Chicago

Sipsma, Heather L., Jeannette R. Ickovics, Haiqun Lin, and Trace S. Kershaw. The Impact of Future Expectations On Adolescent Sexual Risk Behavior. 2013.

Dyfyniad MLA

Sipsma, Heather L., Jeannette R. Ickovics, Haiqun Lin, and Trace S. Kershaw. The Impact of Future Expectations On Adolescent Sexual Risk Behavior. 2013.

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