Longwell, Chester R. <br/><br/>
Outlines of physical geology 

 - 2nd ed. 
 - New york  John willey & sons  1957 
<br/><br/><label>Subjects--Index Terms: </label>Weathering and mass wasting  Subsurface water  Lakes and swamps 
<br/><br/><label>Dewey Class. No.: </label>551  / H1