APA
Zapfel R. E., Pontificia Universitas Lateranensis, Academia Alfonsiana & Institutum superious theologiae moralis. (1989). The withholding or withdrawal of artificial hydration and/or nutrition from dying patients in the United States. Romae: Pontificia Universitas Lateranensis.
Chicago
Zapfel Robert Eugene, Pontificia Universitas Lateranensis, Academia Alfonsiana and Institutum superious theologiae moralis. 1989. The withholding or withdrawal of artificial hydration and/or nutrition from dying patients in the United States. Romae: Pontificia Universitas Lateranensis.
Harvard
Zapfel R. E., Pontificia Universitas Lateranensis, Academia Alfonsiana and Institutum superious theologiae moralis. (1989). The withholding or withdrawal of artificial hydration and/or nutrition from dying patients in the United States. Romae: Pontificia Universitas Lateranensis.
MLA
Zapfel Robert Eugene, Pontificia Universitas Lateranensis, Academia Alfonsiana and Institutum superious theologiae moralis. The withholding or withdrawal of artificial hydration and/or nutrition from dying patients in the United States. Romae: Pontificia Universitas Lateranensis. 1989.