Advance Care Planning: Health Care Directives. National Institute on Aging.
Citazione stile Chigago Style (17a edizione)Advance Care Planning: Health Care Directives. National Institute on Aging.
Citatione MLA (9a ed.)Advance Care Planning: Health Care Directives. National Institute on Aging.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.