Dokumentuaren aipamena

APA (7th ed.) Zitazioa
Paullin Charles Oscar & Wright John Kirtland. (1932). Atlas of the historical geography of the United States. Carnegie Institution of Washington.
Chicago Style (17th ed.) Zitazioa
Paullin Charles Oscar eta Wright John Kirtland. Atlas of the Historical Geography of the United States. Carnegie Institution of Washington, 1932.
MLA (9th ed.) Zitazioa
Paullin Charles Oscar eta Wright John Kirtland. Atlas of the Historical Geography of the United States. Carnegie Institution of Washington, 1932.
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