Facsimile: Petroof's Map of Alaska and Adjoining Regions: Geographical Divisions.
(Facsimile) Map of Alaska and Adjoining Regions Compiled by Ivan Petroof, Special Agent Tenth Census, 1882. Showing Boundaries of Geographical Division. Drawn by Harry King. (Reduced from original scale). Photo Lith. by Hoen & Co. Baltimore, MD. Julius Bien & Co. Lith. NY. Department of the Interior. Map VI. Tenth Census of the United States.
David RumseyPetroof, Ivan
1882
1904
(U.S.) Government Printing Office
1:12 000 000