Cofnodi Dyfyniadau
Dyfyniad APA
Estados Unidos Coast and Geodetic Survey & Andrew B. Graham Photo Litho. (1903). General progress sketch. U. S. Coast and Geodetic Survey.
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Dyfyniad Arddull Chicago
Estados Unidos Coast and Geodetic Survey and Andrew B. Graham Photo Litho. General Progress Sketch. U. S. Coast and Geodetic Survey, 1903.
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Dyfyniad MLA
Estados Unidos Coast and Geodetic Survey and Andrew B. Graham Photo Litho. General Progress Sketch. U. S. Coast and Geodetic Survey, 1903.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.