Παραπομπή APA

(1922). Population 1920: General report and analytical tables. Washington, D.C: Government Printing Office.

Παραπομπή Chicago Style

Population 1920: General Report and Analytical Tables. Washington, D.C: Government Printing Office, 1922.

Παραπομπή MLA

Population 1920: General Report and Analytical Tables. Washington, D.C: Government Printing Office, 1922.

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