Barker, W. H. (1987). Adding life to years: Organized geriatrics services in Great Britain and implications for the United States. Johns Hopkins Univ. Pr.
Chicago-Zitierstil (17. Ausg.)Barker, William H. Adding Life to Years: Organized Geriatrics Services in Great Britain and Implications for the United States. Baltimore u.a: Johns Hopkins Univ. Pr, 1987.
MLA-Zitierstil (9. Ausg.)Barker, William H. Adding Life to Years: Organized Geriatrics Services in Great Britain and Implications for the United States. Johns Hopkins Univ. Pr, 1987.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.