Beullens, P. Like a book written by god's finger: Animals showing the path toward god / Pieter Beullens. A cultural history of animals in the Medieval age.(2007).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBeullens, Pieter. "Like a Book Written by God's Finger: Animals Showing the Path Toward God / Pieter Beullens." A Cultural History of Animals in the Medieval Age.(2007) .
एमएलए (8वां संस्करण) प्रशस्ति पत्रBeullens, Pieter. "Like a Book Written by God's Finger: Animals Showing the Path Toward God / Pieter Beullens." A Cultural History of Animals in the Medieval Age.(2007), .
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