Hancock, B. L. (1987). Social work with older people. Prentice-Hall.
Chicago-viite (17. p.)Hancock, Betsy Ledbetter. Social Work with Older People. Englewood Cliffs: Prentice-Hall, 1987.
MLA-viite (9. p.)Hancock, Betsy Ledbetter. Social Work with Older People. Prentice-Hall, 1987.
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