Sonn, U. (1996). Longitudinal studies of dependence in daily life activities among elderly persons: Methodological development, use of assistive devices and relation to impairments and functional limitations. Scandinavian Univ. Press.
Chicago-Zitierstil (17. Ausg.)Sonn, Ulla. Longitudinal Studies of Dependence in Daily Life Activities Among Elderly Persons: Methodological Development, Use of Assistive Devices and Relation to Impairments and Functional Limitations. Oslo [u.a.]: Scandinavian Univ. Press, 1996.
MLA-Zitierstil (9. Ausg.)Sonn, Ulla. Longitudinal Studies of Dependence in Daily Life Activities Among Elderly Persons: Methodological Development, Use of Assistive Devices and Relation to Impairments and Functional Limitations. Scandinavian Univ. Press, 1996.