(1992). Advance directives: Are they an advance? Advance Directives Seminar Group, Centre for Bioethics, University of Toronto.
Chicago Style aipamenaAdvance Directives: Are They an Advance? Advance Directives Seminar Group, Centre for Bioethics, University of Toronto. 1992.
MLA aipamenaAdvance Directives: Are They an Advance? Advance Directives Seminar Group, Centre for Bioethics, University of Toronto. 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.