Books by Robert W. Schanzle
The freshwater mussels (Bivalvia:Unionidae) of the Fox River Basin, Illinois and Wisconsin
A survey of the freshwater mussels (Bivalvia: Unionidae) of the Sangamon River Basin, Illinois
A survey of the freshwater mus
A survey of the freshwater mussles (Bivalvia: Unionidae) of the Sangamon River Basin, Illinois