Dokumentuaren aipamena

APA (7th ed.) Zitazioa
Plummer Geo. H., Plummer F. G., & Rankine J. H. (1898). Map of Washington showing classification of lands. U. S. Geological Survey.
Chicago Style (17th ed.) Zitazioa
Plummer Geo. H., Plummer F. G., eta Rankine J. H. Map of Washington Showing Classification of Lands. U. S. Geological Survey, 1898.
MLA (9th ed.) Zitazioa
Plummer Geo. H., et al. Map of Washington Showing Classification of Lands. U. S. Geological Survey, 1898.
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