New Math Puzzle Book
"Longley-Cook, L H"
New Math Puzzle Book - \\197000ENGGPSX - Van Nostrand Reinhold 1970 New York - 176p
includes index and biblioraphy
New Math Puzzle Book - \\197000ENGGPSX - Van Nostrand Reinhold 1970 New York - 176p
includes index and biblioraphy