Mortonson, M. S. (1966). Developing the Franciscan spirit through reading: A selective bibliographical index of seven Franciscan periodicals, 1940-1965.
Chicago-referens (17:e uppl.)Mortonson, Mary Sheila. Developing the Franciscan Spirit Through Reading: A Selective Bibliographical Index of Seven Franciscan Periodicals, 1940-1965. 1966.
MLA-referens (8:e uppl.)Mortonson, Mary Sheila. Developing the Franciscan Spirit Through Reading: A Selective Bibliographical Index of Seven Franciscan Periodicals, 1940-1965. 1966.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.