APA (7th ed.) Citation

RN, B. (2009). Enjoy a vital old age. Consumer Reports on Health, 21(3), 7.

Chicago Style (17th ed.) Citation

RN, Butler. "Enjoy a Vital Old Age." Consumer Reports on Health 21, no. 3 (2009): 7.

MLA (9th ed.) Citation

RN, Butler. "Enjoy a Vital Old Age." Consumer Reports on Health, vol. 21, no. 3, 2009, p. 7.