TY - BOOK AU - Jeffries,Michael J. AU - Mills,Derek Henry TI - Freshwater ecology: principles and applications SN - 1852930217 : AV - QH541.5.F7 J44 1996 U1 - 574.5/2632 20 PY - 1996/// CY - London, New York PB - Belhaven Press,, John Wiley and Sons KW - Freshwater ecology KW - Nature KW - Effect of human beings on N1 - Includes bibliographical references (p. [254]-275) and indexes ER -