Humphrey, G. M., & Zimpfer, D. G. (1996). Counselling for grief and bereavement. Sage.
Lua i Stíl Chicago (17ú heag.)Humphrey, Geraldine M., agus David G. Zimpfer. Counselling for Grief and Bereavement. London: Sage, 1996.
Lua MLA (9ú heag.)Humphrey, Geraldine M., agus David G. Zimpfer. Counselling for Grief and Bereavement. Sage, 1996.
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