London. Her Majesty's stationery office <br/><br/>
Methods of chemical analysis as applied to sewage and sewage effluents 
By HMSO 
 - London  HMSO  1956 
 - 95p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage -- Analysis
<br/><br/><label>Dewey Class. No.: </label>X816 x42 Un3