Land subsidence  international symposium, 11-15 December 1989 
editors B. Singh, N.C. Saxena 
 - Dhanbad, India  Central Mining Research Station  1991 
 - 676 p. ; 24 cm. 
<br/><br/><label>ISBN: </label>9061911281 
<br/><br/><label>LCCN: </label>91-906141 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Subsidences (Earth movements)--Congresses<br/>Subsidences (Earth movements)--Case studies--Congresses