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Report of an examination of the Upper Columbia River and the territority in its vicinity in September and October, 1881, to determine its navigability, and adaptability to steamboat transportation

Thomas W. SymonsUnited States. Army. Corps of Engineers

出版	U.S. Government Printing Office, 1882
URL	http://books.google.com.hk/books?id=ppRQAAAAYAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN