APA (7e ed.) Bronvermelding

Catholic Church. Pontifical Council for the Family & United States Catholic Conference. (1991). In the service of life: Instrumentum laboris. Office for Publishing and Promotion Services, United States Catholic Conference.

Chicago (17e ed.) Bronvermelding

Catholic Church. Pontifical Council for the Family en United States Catholic Conference. In the Service of Life: Instrumentum Laboris. Washington, D.C.: Office for Publishing and Promotion Services, United States Catholic Conference, 1991.

MLA (8e ed.) Bronvermelding

Catholic Church. Pontifical Council for the Family en United States Catholic Conference. In the Service of Life: Instrumentum Laboris. Office for Publishing and Promotion Services, United States Catholic Conference, 1991.