Companion to A sand county almanac :  interpretive & critical essays / 
edited by J. Baird Callicott. 
 - Madison, Wis. :  University of Wisconsin Press,  1987. 
 - x, 308 p. :  ill. ;  23 cm. Hardcover and paperback copies. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0299112349 : 
<br/><br/><label>LCCN: </label>87010396 
<br/><br/><label>Subjects--Personal Names: </label><br/>Leopold, Aldo, 1886-1948.  Sand county almanac. 
<br/><br/><label>LC Class. No.: </label>QH81.L563  / C66 1987 
<br/><br/><label>Dewey Class. No.: </label>508.73