Volpe, E. Peter (September 1955). "Intensity of Reproductive Isolation between Sympatric and Allopatric Populations of Bufo americanus and Bufo fowleri". The American Naturalist. 89 (848): 303–317. doi:10.1086/281895. S2CID85405593.
Sullivan, Brian K.; Malmos, Keith B.; Given, Mac F. (16 May 1996). "Systematics of the Bufo woodhousii Complex (Anura: Bufonidae): Advertisement Call Variation". Copeia. 1996 (2): 274–280. doi:10.2307/1446843. JSTOR1446843.
Green, Taylor; Das, Elizabeth; Green, David M. (2016). "Springtime Emergence of Overwintering Toads, Anaxyrus fowleri, in Relation to Environmental Factors". Copeia. 104 (2): 393–401. doi:10.1643/ce-15-323. S2CID88626886.
Mergler, Ciara J.; Gall, Brian G. (2 January 2021). "Has the indestructible insect met its match? Velvet ants as prey to bufonid toads". Ethology Ecology & Evolution. 33 (1): 15–24. doi:10.1080/03949370.2020.1789747. S2CID225392620.
Sullivan, Brian K.; Malmos, Keith B.; Given, Mac F. (16 May 1996). "Systematics of the Bufo woodhousii Complex (Anura: Bufonidae): Advertisement Call Variation". Copeia. 1996 (2): 274–280. doi:10.2307/1446843. JSTOR1446843.
Volpe, E. Peter (September 1955). "Intensity of Reproductive Isolation between Sympatric and Allopatric Populations of Bufo americanus and Bufo fowleri". The American Naturalist. 89 (848): 303–317. doi:10.1086/281895. S2CID85405593.
Green, Taylor; Das, Elizabeth; Green, David M. (2016). "Springtime Emergence of Overwintering Toads, Anaxyrus fowleri, in Relation to Environmental Factors". Copeia. 104 (2): 393–401. doi:10.1643/ce-15-323. S2CID88626886.
Mergler, Ciara J.; Gall, Brian G. (2 January 2021). "Has the indestructible insect met its match? Velvet ants as prey to bufonid toads". Ethology Ecology & Evolution. 33 (1): 15–24. doi:10.1080/03949370.2020.1789747. S2CID225392620.