In situ investigations in soils and rocks 
/ Proceedings of the Conference Organized by the British Geotechnical society in London, 13-15 May, 1969 
 - London:   British Geotechnical Society,   1972 
 - 323p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science 
<br/><br/><label>Subjects--Index Terms: </label>Soils  
<br/><br/><label>Universal Decimal Class. No.: </label>6234.131+552.1](082.2)  / L0