Dyfyniad APA

Costello, D. M., Dierker, L. C., Jones, B. L., & Rose, J. S. (2008). Trajectories of Smoking from Adolescence to Early Adulthood and their Psychosocial Risk Factors.

Dyfyniad Arddull Chicago

Costello, Darce M., Lisa C. Dierker, Bob L. Jones, and Jennifer S. Rose. Trajectories of Smoking From Adolescence to Early Adulthood and Their Psychosocial Risk Factors. 2008.

Dyfyniad MLA

Costello, Darce M., Lisa C. Dierker, Bob L. Jones, and Jennifer S. Rose. Trajectories of Smoking From Adolescence to Early Adulthood and Their Psychosocial Risk Factors. 2008.

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