O'Sullivan, H. (1991). Trends in mission: Toward the third millennium: essays in celebration of twenty-five years of SEDOS. Orbis Books.
Chicago-Zitierstil (17. Ausg.)O'Sullivan, Helene. Trends in Mission: Toward the Third Millennium: Essays in Celebration of Twenty-five Years of SEDOS. Ney York: Orbis Books, 1991.
MLA-Zitierstil (9. Ausg.)O'Sullivan, Helene. Trends in Mission: Toward the Third Millennium: Essays in Celebration of Twenty-five Years of SEDOS. Orbis Books, 1991.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.