(1975). The knight of the Immaculate: Father Maximilian Kolbe, O.F.M.Conv. (1894-1941). Franciscan Mission Association.
Čikaški stil citiranja (17. izdanje)The Knight of the Immaculate: Father Maximilian Kolbe, O.F.M.Conv. (1894-1941). Granby, MA: Franciscan Mission Association, 1975.
MLA način citiranja (8. izdanje)The Knight of the Immaculate: Father Maximilian Kolbe, O.F.M.Conv. (1894-1941). Franciscan Mission Association, 1975.
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