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First-order Triangulation and Traverse in Arkansas (1927 Datum)

U.S. Coast and Geodetic SurveyWalter Draper Sutcliffe

出版	U.S. Government Printing Office, 1934
URL	http://books.google.com.hk/books?id=iiqlZhQuc9IC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN