mathematical reasoning and proof with puzzles, patterns, and games Ensley, Douglas E. creator Crawley, J. Winston. Hoboken, NJ Wiley c2006 xii, 691 p. : col. ill. ; 26 cm. Douglas E. Ensley, J. Winston Crawley. Logic, Symbolic and mathematical Mathematical recreations Computer science Mathematics 511/.1 0471476021 http://www.loc.gov/catdir/toc/ecip0514/2005017417.html http://www.loc.gov/catdir/enhancements/fy0622/2005017417-d.html http://www.loc.gov/catdir/enhancements/fy0653/2005017417-b.html http://www.loc.gov/catdir/toc/ecip0514/2005017417.html http://www.loc.gov/catdir/enhancements/fy0622/2005017417-d.html http://www.loc.gov/catdir/enhancements/fy0653/2005017417-b.html DLC DLC