Penick, James L. <br/><br/>
Progressive politics and conservation :  the Ballinger-Pinchot affair / 
James Penick, Jr. 
 - Chicago :  University of Chicago Press,  c1968. 
 - xv, 207 p. ;  21 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Ballinger, Richard Achilles, 1858-1922. <br/>Pinchot, Gifford, 1865-1946. 
<br/><br/><label>Subjects--Corporate Names: </label><br/>United States. Department of the Interior. <br/>United States. Forest Service. 
<br/><br/><label>Dewey Class. No.: </label>333.720973  / PEP 1968