Mendelson, J. R. (1998). Geographic variation in Bufo valliceps (Anura: Bufonidae), a widespread toad in the United States and Middle America. Natural History Museum, Univ. of Kansas.
Chicago-Zitierstil (17. Ausg.)Mendelson, Joseph R. Geographic Variation in Bufo Valliceps (Anura: Bufonidae), a Widespread Toad in the United States and Middle America. Lawrence, Kan: Natural History Museum, Univ. of Kansas, 1998.
MLA-Zitierstil (9. Ausg.)Mendelson, Joseph R. Geographic Variation in Bufo Valliceps (Anura: Bufonidae), a Widespread Toad in the United States and Middle America. Natural History Museum, Univ. of Kansas, 1998.
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