Calkins, R. G. (1998). Medieval architecture in western europe: From a.d. 300 to 1500. Oxford unversity.
Chicago Style (17th ed.) CitationCalkins, Robert G. Medieval Architecture in Western Europe: From A.d. 300 to 1500. New York: Oxford unversity, 1998.
ציטוט MLACalkins, Robert G. Medieval Architecture in Western Europe: From A.d. 300 to 1500. Oxford unversity, 1998.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.