7 books • 7 series
The Unity of Combinatorics (Carus Mathematical Monographs)
Winning Ways for Your Mathematical Plays, Volume 3
Winning Ways for Your Mathematical Plays, Volume 2
Combinatorial Games (Proceedings of Symposia in Applied Mathematics, #43)
Unsolved Problems in Geometry (Unsolved Problems in Intuitive Mathematics, #2) (Problem Books in Mathematics, #2) (Problem Books in Mathematics: Unsolved Problems in Intuitive Mathematics, Vol 2)
Gewinnen Strategien Fur Mathematische Spiele (Mathematik)
Unsolved Problems in Number Theory (Problem Books in Mathematics, #1) (Unsolved Problems in Intuitive Mathematics, #1) (Proceedings in Life Sciences, #1)