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APA (7th ed.) Zitazioa
Estados Unidos Coast and Geodetic Survey & Norris Peters Co. (1905). Lines of equal magnetic declination and of equal annual change in the United States for 1905. U. S. Coast and Geodetic Survey.
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Chicago Style (17th ed.) Zitazioa
Estados Unidos Coast and Geodetic Survey eta Norris Peters Co. Lines of Equal Magnetic Declination and of Equal Annual Change in the United States for 1905. U. S. Coast and Geodetic Survey, 1905.
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MLA (9th ed.) Zitazioa
Estados Unidos Coast and Geodetic Survey eta Norris Peters Co. Lines of Equal Magnetic Declination and of Equal Annual Change in the United States for 1905. U. S. Coast and Geodetic Survey, 1905.
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