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13 pp. OCR and bookmarks supplied by UO. Maps, tables, figures. Published July, 1994. Captured November 26, 2008.
36 pp. OCR and bookmarks supplied by UO. Most recent activity February 7, 1996. Captured November 26, 2008.
47 pp. Bookmarks supplied by UO. Maps, figures, illus. Published February, 2006. Captured November 26, 2008.
39 pp. OCR and bookmarks supplied by UO. Map. Adopted October 1, 1980. Captured December 1, 2008.
111 pp. OCR and bookmarks supplied by UO. Maps, charts, tables, illus. Most recent activity 1994, per Web site. Captured December 1, 2008.
20 pp. Maps, figures, tables. Published March 14, 2005. Captured December 2, 2008.
50 pp. Bookmarks supplied by UO. Maps, charts, tables. Published October, 2005. Captured December 2, 2008.
45 pp. Maps, tables, charts. Published August, 2000. Captured December 2, 2008.
38 pp. Bookmarks supplied by UO. Includes maps and figures. Published October, 1993. Captured October 9, 2007.
77 pp. Bookmarks supplied by UO. Includes maps and figures. Adopted January 2, 1992. Captured October 9, 2007.