Childs, Henry E. Jr. (1953). "Selection by predation on albino and normal spadefoot toads". Evolution. 7 (3): 228–233. doi:10.2307/2405733. JSTOR2405733.
Seymour, Roger S. (1973). "Energy metabolism of dormant spadefoot toads (Scaphiopus)". Copeia. 3 (3): 435–445. doi:10.2307/1443107. JSTOR1443107.
Whitaker, John O. Jr.; Rubin, David; Munsee, Jack R. (1977). "Observations on food habits of four species of spadefoot toads, genus Scaphiopus". Herpetologica. 33 (4): 468–475. JSTOR3891718.
Childs, Henry E. Jr. (1953). "Selection by predation on albino and normal spadefoot toads". Evolution. 7 (3): 228–233. doi:10.2307/2405733. JSTOR2405733.