Montgomery, Carla W. <br/><br/>
Environmental geology/2nd ed. 

 - 2nd ed. 
 - USA  WMC Brown  1989 
<br/><br/><label>Subjects--Index Terms: </label>Population and the environment   rocks and minerals  volcanoes 
<br/><br/><label>Dewey Class. No.: </label>550  / M9