The basaltic Somuncura Plateau, Rio Negro, Argentina. The endemic herpetofauna and his peculiar biocenotic equilibria. Physis Buenos Aires, 28(No. 77) 1969: 257-271. 267 [Zoological Record Volume 106]
The Patagonian Telmatobiid fauna of the volcanic Somuncura Plateau of Argentina. Journal of Herpetology, 3 1969: 1-18. 14 [Zoological Record Volume 106]