Ecology and classification of North American freshwater invertebrates / edited by James H. Thorp and Alan P. Covich. Ecology and classification of North American freshwater invertebrates Thorp, James H. Covich, Alan P. Freshwater invertebrates Ecology North America. Freshwater invertebrates North America Classification. QL365.4.A1 E36 2001eb QL365.4.A1E36 2001 592 21 ECO Includes bibliographical references and indexes. San Diego : Academic Press, c2001. c2001. 2001 Text xvi, 1056 p. : eng North America. North America