Kolbe, L. J., Kann, L., & Collins, J. L. (1993). Overview of the Youth Risk Behavior Surveillance System.
Chicago Style CitationKolbe, L J., L. Kann, i J L. Collins. Overview of the Youth Risk Behavior Surveillance System. 1993.
Cita MLAKolbe, L J., L. Kann, i J L. Collins. Overview of the Youth Risk Behavior Surveillance System. 1993.
Atenció: Aquestes cites poden no estar 100% correctes.