Thompson, A. D. (1976). The Next 15 Years: Population and Religious Education Projections and Estimations of Catholic Elementary and Secondary Students 1975-1990. Washington, D.C..
Chicago-referens (17:e uppl.)Thompson, Andrew D. The Next 15 Years: Population and Religious Education Projections and Estimations of Catholic Elementary and Secondary Students 1975-1990. Washington, D.C., 1976.
MLA-referens (8:e uppl.)Thompson, Andrew D. The Next 15 Years: Population and Religious Education Projections and Estimations of Catholic Elementary and Secondary Students 1975-1990. Washington, D.C., 1976.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.