Hancock, B. L. (1987). Social work with older people. Prentice-Hall.
芝加哥风格引文Hancock, Betsy Ledbetter. Social Work with Older People. Englewood Cliffs: Prentice-Hall, 1987.
MLA引文Hancock, Betsy Ledbetter. Social Work with Older People. Prentice-Hall, 1987.
警告：这些引文格式不一定是100％准确.