U.S. population change, 1950-1970 - Maps.com (Firm); ProQuest (Firm) ([S.l.] : Maps.com, 1999)
Electronic reproduction. Ann Arbor, MI : ProQuest, 2015. Available via World Wide Web. Access may be limited to ProQuest affiliated libraries.
Keywords: United States -- Maps; United States -- Population -- History -- 20th century -- Maps; Electronic books