Twig snake (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Twig snake" in English language version.

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africansnakebiteinstitute.com

Goin, Coleman J.; Goin, Olive B.; Zug, George R. (1978). Introduction to Herpetology, Third Edition. San Francisco: W.H. Freeman. xi + 387 pp. ISBN 0-7167-0020-4. ("Thelotornis kirtlandi [sic]", p. 322).