General principles of sampling and accuracy of results 1980 :  Methods for the examination of waters and associated materials 

 - London :  Her Majesty's Stationary Office,  1980 
 - 58 p. ;  30 cm. 
<br/><br/><label>ISBN: </label>0117514918 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water--Analysis