Need for national policy for the use of underground space :  proceedings 

 - New York :  American Society of Civil Engineers,  1973 
 - 232 p. 
<br/><br/> Held at Berwick Academy, South Berwick, Maine, June 25-29, 1973 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Underground construction--Congresses<br/>Foundations--Congresses