Lankford, Philip M. <br/><br/>
Regional incomes in the United States 1929-1967 :  level, distribution, stability and growth / 
by Philip M. Lankford 
 - Dept. of Geography, Chicago, Ill. :  University of Chicago,  1972 
 - x, 137 p. :  illus. ;  23 cm. 
 - Research paper (University of Chicago. Dept. of Geography) ; no.145. .
<br/><br/>Bibliography: p. 125-137. 
<br/><br/><label>LCCN: </label>72-091224 //r84 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Income--United States--History<br/>Economic zoning--United States