De los Santos, P. V., & Carmona Valdés, S. E. (2017). Prevalence of depression in elderly men and women in Mexico and risk factors.
استشهاد بنمط شيكاغوDe los Santos, Perla Vanessa, و Sandra Emma Carmona Valdés. Prevalence of Depression in Elderly Men and Women in Mexico and Risk Factors. 2017.
MLA استشهادDe los Santos, Perla Vanessa, و Sandra Emma Carmona Valdés. Prevalence of Depression in Elderly Men and Women in Mexico and Risk Factors. 2017.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.