Dyfyniad APA

Kolbe, L. J., Kann, L., & Collins, J. L. (1993). Overview of the Youth Risk Behavior Surveillance System.

Dyfyniad Arddull Chicago

Kolbe, L J., L. Kann, and J L. Collins. Overview of the Youth Risk Behavior Surveillance System. 1993.

Dyfyniad MLA

Kolbe, L J., L. Kann, and J L. Collins. Overview of the Youth Risk Behavior Surveillance System. 1993.

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