Calvert, A. F. The Escorial A Historical and Descriptive Account of the Spanish Royal Palace, Monastery and Mausoleum.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCalvert, Albert Frederick. The Escorial A Historical and Descriptive Account of the Spanish Royal Palace, Monastery and Mausoleum.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCalvert, Albert Frederick. The Escorial A Historical and Descriptive Account of the Spanish Royal Palace, Monastery and Mausoleum.
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