R. L. Sherlock <br/><br/>
Mans influence on the earth 

 - London  Thornton Butterworth Limited  1931 
<br/><br/>R. L. Sherlock: Mans influence on the earth.  London.  Thornton Butterworth Limited, 1931.--(550SHE)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>550  / S H E