James E. Platz, Robert W. Clarkson, James C. Rorabaugh, David M. Hillis, Rana berlandieri: Recently Introduced Populations in Arizona and Southeastern California, Copeia, Vol. 1990, No. 2 (Jun. 27, 1990), pp. 324-333
No takes yet. Share an insight, caveat, or question.
Platz et al. (1990) studied this question.