Aha! Aha! insight
Gardner, Martin
Aha! Aha! insight Martin Gardner ; [framed drawings by Jim Glen, diagrs. by Felix Cooper]. - New York Scientific American c1978. - viii, 179 p. ill. 24 cm.
Bibliography: p. 171-173.
0894540017
78051259
Mathematical recreations.
Problem Solving
Puzzles.
QA95 / .G23
793.7/4
Aha! Aha! insight Martin Gardner ; [framed drawings by Jim Glen, diagrs. by Felix Cooper]. - New York Scientific American c1978. - viii, 179 p. ill. 24 cm.
Bibliography: p. 171-173.
0894540017
78051259
Mathematical recreations.
Problem Solving
Puzzles.
QA95 / .G23
793.7/4