Estall, Robert C, <br/><br/>
A modern geography of the United States;  aspects of life and economy 
Robert Estall. 
 - [first American edition. 
 - Chicago,  Quadrangle Books,  (c)1972. 
 - 401 pages  illustrations  22 cm. 
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<br/><br/><label>LCCN: </label>77183732 //r92 
<br/><br/><label>LC Class. No.: </label>HC106  / .M634 1972 HC106