FAO <br/><br/>
Manual of Methods in Aquatic Environment Research Part 1- Methods for Detection, Measurement and Monitoring of Water Pollution: FAO Fisheries Technical Paper No.137 (FIRI/T137) 

 - Rome,  Food and Agriculture Organization,  1975, 
 - 238p.  28cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Methods Water Pollution