Schmitz, James H., <br/><br/>
The eternal frontiers / 
James Schmitz. 
 - New York :  Putnam,  1973. 
 - 190 p. ; 
<br/><br/><label>ISBN: </label>0399110739 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Author, America--20th century.-
<br/><br/><label>Dewey Class. No.: </label>813.52  / Et