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40 pp. Maps, figures, illus., appendix. Published April 28, 2000. Captured September 3, 2009.
93 pp. Bookmarks supplied by UO. Maps, figures, illus. Published July 27, 2001. Captured September 4, 2009.
50 pp. Tables, illus., appendices. Published 1999. Captured September 16, 2009.
83 pp. Bookmarks supplied by UO. Maps, tables, figures, illus., appendices. Published June, 2005. Captured September 16. 2009.
87 pp. Bookmarks supplied by UO. Maps, tables, figures, illus., appendices. Published August 13, 2003. Captured September 16, 2009.
105 pp. Bookmarks supplied by UO. Maps, tables, figures, illus., appendices. Adopted October, 2001. Captured September 18, 2009.
50 pp. Bookmarks supplied by UO. Includes maps and figures. Adopted January 31, 1996; published March, 1996. Captured May 12, 2008.