Dokumentuaren aipamena

APA (7th ed.) Zitazioa
Estados Unidos Coast and Geodetic Survey & Andrew B. Graham Co. Photo Lithographers. (1909). Base map of the United States. U.S.Coast and Geodetic Survey.
Chicago Style (17th ed.) Zitazioa
Estados Unidos Coast and Geodetic Survey eta Andrew B. Graham Co. Photo Lithographers. Base Map of the United States. U.S.Coast and Geodetic Survey, 1909.
MLA (9th ed.) Zitazioa
Estados Unidos Coast and Geodetic Survey eta Andrew B. Graham Co. Photo Lithographers. Base Map of the United States. U.S.Coast and Geodetic Survey, 1909.
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