APA ציטוט

Cohen, S. A., Agree, E. M., Ahmed, S., & Naumova, E. N. (2009). Grandparental caregiving, income inequality and respiratory infections in elderly US individuals. BMJ Group.

Citação norma Chicago

Cohen, Steven A., Emily M. Agree, Saifuddin Ahmed, and Elena N. Naumova. Grandparental Caregiving, Income Inequality and Respiratory Infections in Elderly US Individuals. BMJ Group, 2009.

ציטוט MLA

Cohen, Steven A., Emily M. Agree, Saifuddin Ahmed, and Elena N. Naumova. Grandparental Caregiving, Income Inequality and Respiratory Infections in Elderly US Individuals. BMJ Group, 2009.