Lent, Henry B. <br/><br/>
Men at work in the Great Lakes States / 
by Henry B. Lent. 
 - New York :  Putnam,  1971. 
 - 126 p. :  ill. 
 - The Men at work series .
<br/><br/><label>LCCN: </label>72129238 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Industries--Great Lakes Region.
<br/><br/><label>Dewey Class. No.: </label>338