Williams, Schafer,
The Gregorian epoch: reformation, revolution, reaction? - Boston : Heath, 1964. - xiv, 110 p.; 24 cm. - Problems in European civilization .
Bibliography: p. 109-110.
63020378
Gregory VII, Pope, approximately 1015-1085.
Church history--11th century.
Papacy--History--To 1309.
BX1178 / .W5
274 / WIG
The Gregorian epoch: reformation, revolution, reaction? - Boston : Heath, 1964. - xiv, 110 p.; 24 cm. - Problems in European civilization .
Bibliography: p. 109-110.
63020378
Gregory VII, Pope, approximately 1015-1085.
Church history--11th century.
Papacy--History--To 1309.
BX1178 / .W5
274 / WIG