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.