Doka, K. J. (2002). Loss in later life. Washington DC: Hospice Foundation of America.
Trích dẫn kiểu ChicagoDoka, Kenneth J. Loss in Later Life. Washington DC: Hospice Foundation of America, 2002.
MLA citiranjeDoka, Kenneth J. Loss in Later Life. Washington DC: Hospice Foundation of America, 2002.
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