British Museum (Natural History). Dept. of Zoology & Lydekker, R. (1906). Guide to the gallery of Reptilia and Amphibia: In the Department of zoology of the British museum (Natural history). Printed by order of the Trustees.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBritish Museum (Natural History). Dept. of Zoology और Richard Lydekker. Guide to the Gallery of Reptilia and Amphibia: In the Department of Zoology of the British Museum (Natural History). London: Printed by order of the Trustees, 1906.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBritish Museum (Natural History). Dept. of Zoology और Richard Lydekker. Guide to the Gallery of Reptilia and Amphibia: In the Department of Zoology of the British Museum (Natural History). Printed by order of the Trustees, 1906.
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