KARRER O., Il Cammino di Newman verso la Chiesa,
in J. DANIELOU-H. VORGRIMLER eds., Sentire Ecclesiam, II, Roma 1964.
HARPER G. H., Cardinal Newman and William Froude:
A Correspondence. John Hopkins University Press, Baltimore 1933.
in J. DANIELOU-H. VORGRIMLER eds., Sentire Ecclesiam, II, Roma 1964.
A Correspondence. John Hopkins University Press, Baltimore 1933.