Smith, Frank, E. <br/><br/>
Conservation in the United states: a documentary history. 5v. 

 - New york  Van nostrand  1971 
 - ,  ,  Book  
<br/><br/><label>Subjects--Index Terms: </label>Land economics  Conservation in the United States  Land economics  
<br/><br/><label>Dewey Class. No.: </label>333