He leads, I follow : the life of Mother Maria Theresia Bonzel, foundress of the Sisters of St. Francis of Perpetual Adoration / by Lothar Hardick ; translated from the German by M. Honora Hau and M. Clarahilda Fischer
. – Colorado Springs : Sisters of St. Francis of Perpetual Adoration, [1971]
. – xi, 344 p. ; 23 cm