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040 _a UG-KaMUL
082 0 0 _a 571.95
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092 _a Q 571.95 UNI
110 1 _a United States.
_b Environmental Protection Agency.
245 1 0 _a Methods for measuring the acute toxicity of effluents and receiving waters to fresh water and marine organisms /
_c Edited by Cornelius I. Weber.
250 _a 4th ed.
260 _a Ohio :
_b United States Environmental Protection Agency,
_c 1991.
300 _a xiii,327 p. :
_b ill. ;
_c 22 cm.
504 _a Includes bibliographical references.
650 0 _a Sewage
_x Purification.
942 _2ddc
_cBK
999 _c269221
_d269221