Freshwater planarians (Turbellaria) of North America
By: by Roman Kenk.
Contributors: Environmental Monitoring and Support Laboratory (Cincinnati, Ohio). Aquatic Biology Section.; Smithsonian Institution. Dept. of Invertebrate Zoology.
Edition: 2nd print.
Series: Water pollution control research series -- 18050 ELD02/72.
Publisher: U.S. Environmental Protection Agency, Office of Research and Development, Environmental Monitoring and Support Laboratory, Biological Methods Branch, Aquatic Biology Section
Published: 1980
Place of publication: Cincinnati, Ohio
Language: eng
Number of pages: 81
Subjects: Turbellaria -- North America -- Identification.
Other titles: Biota of freshwater ecosystems.
Notes: "Department of Invertebrate Zoology, Smithsonian Institution."

"Originally published as Identification manual no. 1, Biota of freshwater ecosystems"--p. iii.

"First printing, February, 1972, second printing, September, 1976"--T.p. verso.

Includes index.

Bibliography: p. 73-77.