- Tomorrow's Math: Unsolved Problems for the Amateur by Charles Stanley Ogilvy, 1972-02
- Tomorrow's Math: Unsolved Problems for the Amateur
- Math Odyssey 2000: Puzzles, Mysteries, Unsolved Problems, Breakthroughs, and the People of Mathematics by Clement W. Falbo, 1994-01
- Tomorrows Math 2ND Edition Unsolved Problems Fro by C Stanley Ogilvy, 1972
- Unsolved Problems of Noise and Fluctuations: UPoN'99: Second International Conference, Adelaide, Australia 11-15 July 1999 (AIP Conference Proceedings)
- Math Odyssey Two Thousand ,Puzzles, Mysteries, Unsolved Problems, Breakthroughs, &the People of Mathematics 1994 publication by ClementW.Falbo, 1994-01-01
- Old and New Unsolved Problems in Plane Geometry and Number Theory (Dolciani Math by Victor Klee; Stan Wagon, 1996-01-01
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