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26 pp. Maps, tables, illus. Published May, 2004. Captured September 8, 2009.
47 pp. Maps, charts, tables. Published January, 2003. Captured August 26, 2009.
48 pp. Bookmarks supplied by UO. Map, chart, tables, appendices. Published December, 2003. Captured April 22, 2009.
100 pp. Bookmarks supplied by UO. Maps, tables, figures, appendices. Published March 24, 2009. Captured April 27, 2009.
14 pp. Bookmarks supplied by UO. Figures, table. Not dated, most recent reference July 24, 2004. Captured April 28, 2009.
54 pp. Maps, tables, figures. Draft published June, 2008. Captured April 28, 2009.
58 pp. Bookmarks supplied by UO. Includes figures. Published March, 1996. Captured March 4, 2008.
62 pp. Bookmarks supplied by UO. Includes maps and figures. Published 1990. Captured MArch 24, 2008.
87 pp. Bookmarks supplied by UO. Includes maps and figures. Adopted June 30, 1982. Captured October 28, 2007.
55 pp. Bookmarks supplied by UO. Includes map and figures. Adopted May 10, 2006. Captured May 8, 2008.