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47 pp. OCR and bookmarks supplied by UO. Maps, figures. Published October, 1999. Captured November 25, 2008.
173 pp. Bookmarks supplied by UO. Includes maps and figures. Adopted March 24, 1988. Captured October 10, 2007.
171 pp. Bookmarks supplied by UO. Includes maps and figures. Adopted September 21, 1994. Captured December 21, 2007.
163 pp. Bookmarks supplied by UO. Includes maps. Adopted November, 1993; republished June, 2000. Captured December 21, 2007.
58 pp. Maps, chart, figures, illus. Not dated; most recent activity 2007. Captured March 10, 2009.
68 pp. Maps, tables, charts, figures, illus. Published November, 2007. Captured December 12, 2008.
174 pp. Bookmarks supplied by UO. Maps, charts, tables, figures, illus. Published October, 2004. Captured December 15, 2008.
120 pp. Bookmarks supplied by UO. Map, tables, figures, illus. Published December, 2004. Captured December 9, 2008.
262 pp. Bookmarks modified by UO. Maps, tables, figures. Published October 28, 2008. Captured February 13, 2009.
50 pp. Maps, tables, figures, illus. Published February, 2008. Captured September 22, 2009.