Unicorn Projects, Inc, WHYY (Television station : Philadelphia, Pa.), PBS Home Video, Bery, C., & Macaulay, D. (2006). Cathedral (Full screen version.). PBS Home Video.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnicorn Projects, Inc, Pa.) WHYY (Television station : Philadelphia, PBS Home Video, Caroline Bery, और David Macaulay. Cathedral. Full screen version. [Alexandria, Va.?]: PBS Home Video, 2006.
एमएलए (8वां संस्करण) प्रशस्ति पत्रUnicorn Projects, Inc, et al. Cathedral. Full screen version. PBS Home Video, 2006.
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