Bibliography
Cei, J. M., V. Erspamer, and M. Roseghini . 1968. Taxonomic and evolutionary significance of biogenic amines and polypeptides in amphibian skin. II. Toads of the genera Bufo and Melanophryniscus. Systematic Zoology 17: 232-245.
Cei, J. M., V. Erspamer, and M. Roseghini . 1968. Taxonomic and evolutionary significance of biogenic amines and polypeptides in amphibian skin. II. Toads of the genera Bufo and Melanophryniscus. Systematic Zoology 17: 232-245.
