[1]
Heyer, W.R. and Mello, C.C. 1979. Descriptions of the advertising calls of Cycloramphus asper and Cycloramphus dubius (Amphibia: Leptodactylidae). Papéis Avulsos de Zoologia. 32, 1-23 (1978-1979) (Feb. 1979), 193–200. DOI:https://doi.org/10.11606/0031-1049.1979.32.p193-200.