Whitehill, W. M. (1941). Spanish Romanesque architecture of the eleventh century. [London]: Oxford University Press.
Παραπομπή Chicago StyleWhitehill, Walter Muir. Spanish Romanesque Architecture of the Eleventh Century. [London]: Oxford University Press, 1941.
Παραπομπή MLAWhitehill, Walter Muir. Spanish Romanesque Architecture of the Eleventh Century. [London]: Oxford University Press, 1941.
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