[066-12] The Origin of Weediness
Gray, J. Robert The Origin of Weediness 066-12-print
[070-08] Lack of Physiological Differentiation in Three Color Morphs of the Cricket Frog (Acris crepitans) in Illinois
Gray, Robert H. Lack of Physiological Differentiation in Three Color Morphs of the Cricket Frog (Acris crepitans) in Illinois 070-08-print
[071-38] Non-differential Predation Susceptibility and Behavioral Selection in Three Color Morphs of Illinois Cricket Frogs, Acris crepitans
Gray, Robert H. Non-differential Predation Susceptibility and Behavioral Selection in Three Color Morphs of Illinois Cricket Frogs, Acris crepitans 071-38-print
[088-16MS9505] An Unusual Color Pattern Variant in Cricket Frogs (Acris crepitans) from Southern Illinois
Robert H. Gray An Unusual Color Pattern Variant in Cricket Frogs (Acris crepitans) from Southern Illinois 088-16MS9505-print
[093-28MS2009] Historical Occurrence of Malformations in the Cricket Frog, Acris crepitans, in Illinois
Robert H. Gray Historical Occurrence of Malformations in the Cricket Frog, Acris crepitans, in Illinois 093-28MS2009-print