Freshwater snails (Mollusca: Gastropoda) of North America
By: by J.B. Burch
Publisher: Environmental Monitoring and Support Laboratory, Office of Research and Development, U.S. Environmental Protection Agency
Published: 1982
Place of publication: Cincinnati, Ohio
Language: eng
Number of pages: 294
Subjects: Gastropoda
Notes: EPA 600/3-82-026

"April 1982."

Includes index

Bibliography: p. 222-266

Photocopy. Springfield, Va. : National Technical Information Service, U.S. Dept. of Commerce, 1982