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.
Citação norma ChicagoCatholic Church. Pontifical Council for the Family and 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.
Citação norma MLACatholic Church. Pontifical Council for the Family and United States Catholic Conference. In the Service of Life: Instrumentum Laboris. Office for Publishing and Promotion Services, United States Catholic Conference, 1991.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.