APA citiranje

Hung, W. W., Ross, J. S., Boockvar, K. S., & Siu, A. L. (2011). Recent trends in chronic disease, impairment and disability among older adults in the United States. BioMed Central.

Citação norma Chicago

Hung, William W., Joseph S. Ross, Kenneth S. Boockvar, and Albert L. Siu. Recent Trends in Chronic Disease, Impairment and Disability Among Older Adults in the United States. BioMed Central, 2011.

MLA citiranje

Hung, William W., Joseph S. Ross, Kenneth S. Boockvar, and Albert L. Siu. Recent Trends in Chronic Disease, Impairment and Disability Among Older Adults in the United States. BioMed Central, 2011.