Environmental geology 
edited by Frederick Betz 
 - Hutchinson & Ross, Stroudsburg, Pa.  Dowden  1975 
 - 390 p. : ill. ; 25 cm. 
 - Benchmark papers in geology  25 .
<br/><br/>p. 365 
<br/><br/><label>ISBN: </label>0470071702 
<br/><br/><label>LCCN: </label>75-29646 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering geology--Addresses, essays, lectures<br/>Environmental protection--Addresses, essays, lectures<br/>Man--Influence of environment--Addresses, essays, lectures