Orpheus in the Middle Ages

von Friedman, John Block
Cambridge, Mass. : Harvard University Press, 1970.
Umfang/Format: xvi, 247 p. : illus. ; 24 cm.

The monstrous races in medieval art and thought

von Friedman, John Block
Cambridge, Mass. : Harvard University Press, 1981.
Umfang/Format: xiii, 268 p. : ill. ; 24 cm.

Trade, travel and exploration in the Middle Ages : an encyclopedia

Garland reference library of the humanities 1899
New York London : Garland Publishing, 2000.
Umfang/Format: XXXIX, 715 S.: zahlr. Ill.; Kt.