Dyfyniad APA

Riessman, F. (1977). Older Persons: Unused Resoursces for Unmet Needs. Sage.

Dyfyniad Arddull Chicago

Riessman, Frank. Older Persons: Unused Resoursces for Unmet Needs. Beverly Hills: Sage, 1977.

Dyfyniad MLA

Riessman, Frank. Older Persons: Unused Resoursces for Unmet Needs. Sage, 1977.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.