Wooten, J. A., B. K. Sullivan, M. R. Klooster, T. D. Schwaner, K. O. Sullivan, A. D. Brown, M. Takahashi, and P. R. Bradford. 2019. Thirty years of hybridization between toads along the Agua Fria River in Arizona: Part II: Fine-scale assessment of Genetic changes over time using microsatellites. Journal of Herpetology 53: 104–114.