Riessman, F. (1977). Older Persons: Unused Resoursces for Unmet Needs. Sage.
Chicago Style aipamenaRiessman, Frank. Older Persons: Unused Resoursces for Unmet Needs. Beverly Hills: Sage, 1977.
MLA aipamenaRiessman, Frank. Older Persons: Unused Resoursces for Unmet Needs. Sage, 1977.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.