APA استشهاد

Sims, R., Allaire, J., Gamaldo, A., Edwards, C. L., & Whitfield, K. E. (2009). An examination of dedifferentiation in cognition among African-American older adults.

استشهاد بنمط شيكاغو

Sims, Regina, Jason Allaire, Alyssa Gamaldo, Christopher L. Edwards, و Keith E. Whitfield. An Examination of Dedifferentiation in Cognition Among African-American Older Adults. 2009.

MLA استشهاد

Sims, Regina, et al. An Examination of Dedifferentiation in Cognition Among African-American Older Adults. 2009.

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