The freshwater fishes of British Guiana, including a study of the ecological grouping of species and the relation of the fauna of the plateau to that of the lowlands Q Science
The frog book : North American toads and frogs, with a study of the habits and life histories of those of the northeastern States Q Science
The frog book; North American toads and frogs, with a study of the habits and life histories of those of the northeastern States Q Science
