Trauth, J. B., Johnson, R. L., & Trauth, S. E. (2007).

Conservation implications of a morphometric comparison between the Illinois Chorus Frog (Pseudacris streckeri illinoensis) and Strecker’s Chorus Frog (P. s. streckeri) (Anura: Hylidae) from Arkansas, Illinois, Missouri, Oklahoma, and Texas

. Zootaxa, 1589(1), 23–32. https://doi.org/10.11646/zootaxa.1589.1.2