Johnson, W. Waynon <br/><br/>
Acute toxicity of toxaphene to fathead minnows, channel catfish and bluegills / 
W. Waynon Johnson and Arnold M. Julin 
 - Washington :  EPA,  1978 
 - vii, 20 p. :  ill. ;  28 cm. 
 - Research and development .
<br/><br/> EPA-600/3-80-005 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aquatic ecology<br/>Groundwater ecology
<br/><br/><label>Dewey Class. No.: </label>577.6