Genera of freshwater nematodes (Nematoda) of eastern North America
By: by V. R. Ferris, J. M. Ferris [and] J. P. Tjepkema, for the Environmental Protection Agency.
Contributors: Ferris, 1927-; Tjepkema,
Series: Biota of freshwater ecosystems identification manual -- 10; Water pollution control research series
Publisher: U.S. Environmental Protection Agency]; for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1973
Place of publication: [Washington
Language: eng
Number of pages: 38
Subjects: Nematoda -- North America -- Identification.
Notes: "Project no. 18050 ELD. Contract no. 14-12-894."

Bibliography: p. 33.