Duns Scotus, J., & Wolter, A. B. (2000). Four questions on Mary. Franciscan Institute.
Chicago-čujuhus (17. p.)Duns Scotus, John, juo Allan Bernard Wolter. Four Questions on Mary. St. Bonaventure, New York: Franciscan Institute, 2000.
MLA-čujuhus (9. p.)Duns Scotus, John, juo Allan Bernard Wolter. Four Questions on Mary. Franciscan Institute, 2000.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.