Goodge, W.R. (1960). „Adaptations for amphibious vision in the Dipper (Cinclus mexicanus)”. J. Morphol.107: 79–91. DOI:10.1002/jmor.1051070106. PMID13707012.
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Goodge, W.R. (1960). „Adaptations for amphibious vision in the Dipper (Cinclus mexicanus)”. J. Morphol.107: 79–91. DOI:10.1002/jmor.1051070106. PMID13707012.