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224 pp. Includes maps and figures. Published February, 2003. Captured May 7, 2008.
40 pp. Bookmarks supplied by UO. Maps, tables, figures, illus. Published January 19, 2006. Captured December 11, 2008.
68 pp. Maps, tables, charts, figures, illus. Published November, 2007. Captured December 12, 2008.
87 pp. Bookmarks supplied by UO. Tables, appendices. Published July 15, 1998. Captured January 13, 2008.
48 pp.Bookmarks supplied by UO. Maps, figures, tables, illus. Published September 18, 2006. Captured December 12, 2008.