APA استشهاد

Wells, K., & Littell, J. H. Study quality assessment in systematic reviews of research on intervention effects.

استشهاد بنمط شيكاغو

Wells, Kathleen., و Julia H. Littell. Study Quality Assessment in Systematic Reviews of Research On Intervention Effects.

MLA استشهاد

Wells, Kathleen., و Julia H. Littell. Study Quality Assessment in Systematic Reviews of Research On Intervention Effects.

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