APA استشهاد

Stern, P. H., Taylor, A. B., Bell, N. H., & Epstein, S. (1981). Demonstration that circulating 1 alpha, 25-dihydroxyvitamin D is loosely regulated in normal children.

استشهاد بنمط شيكاغو

Stern, P H., A B. Taylor, N H. Bell, و S. Epstein. Demonstration That Circulating 1 Alpha, 25-dihydroxyvitamin D Is Loosely Regulated in Normal Children. 1981.

MLA استشهاد

Stern, P H., A B. Taylor, N H. Bell, و S. Epstein. Demonstration That Circulating 1 Alpha, 25-dihydroxyvitamin D Is Loosely Regulated in Normal Children. 1981.

تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.