APA način citiranja

Kalkwarf, H. J., Denburg, M. R., Strife, C. F., Zemel, B. S., Foerster, D., Wetzsteon, R. J., & Leonard, M. B. (2011). Vitamin D deficiency is common in children and adolescents with chronic kidney disease.

Čikaški stil citiranja

Kalkwarf, Heidi J., Michelle R. Denburg, C. Frederic Strife, Babette S. Zemel, Debbie Foerster, Rachel J. Wetzsteon, i Mary B. Leonard. Vitamin D Deficiency Is Common in Children and Adolescents With Chronic Kidney Disease. 2011.

MLA način citiranja

Kalkwarf, Heidi J., et al. Vitamin D Deficiency Is Common in Children and Adolescents With Chronic Kidney Disease. 2011.