Calvert, A. F. (1907). The Escorial: A historical and descriptive account of the Spanish royal palace, monastery and mausoleum. J. Lane Company.
Chicago-referens (17:e uppl.)Calvert, Albert Frederick. The Escorial: A Historical and Descriptive Account of the Spanish Royal Palace, Monastery and Mausoleum. London, New York: J. Lane Company, 1907.
MLA-referens (8:e uppl.)Calvert, Albert Frederick. The Escorial: A Historical and Descriptive Account of the Spanish Royal Palace, Monastery and Mausoleum. J. Lane Company, 1907.
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