Census geography :  a historical comparison. 

 - Washington :  U.S. Government of Printing Office,  c1973 
 - ii, 51 p. :  ill. ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Census<br/>Metropolitan areas--United Sates
<br/><br/><label>Dewey Class. No.: </label>304.60973