Selected freshwater invertebrates proposed for special concern status in Massachusetts
Subtitle: (Mollusca, Annelida, Arthropoda)
By: prepared by Douglas G. Smith ; in cooperation with the Commonwealth of Massachusetts, Technical Services Branch, Department of Environmental Quality Engineering, Division of Water Pollution Control
Contributors: Massachusetts. Division of Water Pollution Control. Technical Services Branch
Publisher: The Division
Published: 1981
Place of publication: Westborough, Mass
Language: eng
Number of pages: 26
Subjects: Annelida; Arthropoda; Mollusks
Notes: Cover title: Selected freshwater invertebrates proposed for special concern in Massachusetts.

"October, 1981."

Bibliography: p. 12-13