↑ The encyclopedia of Christianity, Volume 3 by Erwin Fahlbusch, Geoffrey William Bromiley 2003 ISBN 90-04-12654-6 pages 403-404
↑ Rahner, Karl 2004 Encyclopedia of theology: a concise Sacramentum mundi ISBN 0-86012-006-6 page 901
↑ Hillerbrand, Hans Joachim. Encyclopedia of Protestantism, Volume 3 2003. ISBN 0-415-92472-3 page 1174
↑ Encyclopedia of Social History (ISBN 0815303424 page 573) states: "More broadly defined, Mariology is the study of devotion to and thinking about Mary throughout the history of Christianity."
