Kmietowicz, Z. (2002). US and UK are top in teenage pregnancy rates. BMJ.
Chicago Style CitationKmietowicz, Zosia. US and UK Are Top in Teenage Pregnancy Rates. BMJ, 2002.
Cita MLAKmietowicz, Zosia. US and UK Are Top in Teenage Pregnancy Rates. BMJ, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.