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Lua i Stíl Chicago (17ú heag.)Davies, Elizabeth, agus Irene J. Higginson. Better Palliative Care for Older People. Milan: World Health Organization, 2004.
Lua MLA (9ú heag.)Davies, Elizabeth, agus Irene J. Higginson. Better Palliative Care for Older People. World Health Organization, 2004.
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