Blum, Raymond.
Math tricks, puzzles & games /
Raymond Blum ; illustrated by Jeff Sinclair.
- New York : Sterling Pub. Co., c1994.
- 127 p. : ill. ; 22 cm.
Includes index. Includes pocket calculator.
0806905824
93046750
Mathematical recreations.
QA95 / .B517 1994
793.7/4