Diocesan Development Program for Natural Family Planning, Catholic Church. United States Conference of Catholic Bishops. Administrative Committee, Catholic Church. United States Conference of Catholic Bishops, & Diocesan Development Program for Natural Family Planning. (2001). Standards for diocesan natural family planning ministry. United States Conference of Catholic Bishops.
Παραπομπή σε μορφή Chicago (17η εκδ.)Diocesan Development Program for Natural Family Planning, Catholic Church. United States Conference of Catholic Bishops. Administrative Committee, Catholic Church. United States Conference of Catholic Bishops, και Diocesan Development Program for Natural Family Planning. Standards for Diocesan Natural Family Planning Ministry. Washington, D.C.: United States Conference of Catholic Bishops, 2001.
Παραπομπή σε μορφή MLA (8th εκδ.)Diocesan Development Program for Natural Family Planning, et al. Standards for Diocesan Natural Family Planning Ministry. United States Conference of Catholic Bishops, 2001.