APA-Zitierstil (7. Ausg.)

Armstrong, E. A. (1973). Saint Francis: Nature mystic. University of California Press.

Chicago-Zitierstil (17. Ausg.)

Armstrong, Edward Allworthy. Saint Francis: Nature Mystic. Berkeley: University of California Press, 1973.

MLA-Zitierstil (9. Ausg.)

Armstrong, Edward Allworthy. Saint Francis: Nature Mystic. University of California Press, 1973.