National survey of air pollution 1961-71 
by Warren Spring Laboratory 
 - London  Her Majesty's  1972 
 - ix,195p 
<br/><br/> v.i: General Introduction United Kingdom 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air --Pollution --Great Britain.
<br/><br/><label>Dewey Class. No.: </label>X91x42 Un3 61-71