Portašik, R. A. (1998). Slovak Franciscans in America: History of the Holy Savior Vice Province. Franciscan Friars.
Dyfyniad Arddull ChicagoPortašik, Richard A. Slovak Franciscans in America: History of the Holy Savior Vice Province. Pittsburgh: Franciscan Friars, 1998.
Dyfyniad MLAPortašik, Richard A. Slovak Franciscans in America: History of the Holy Savior Vice Province. Franciscan Friars, 1998.
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