| GMD | Text |
| Corporate Author | Joe Spooner / Key Curriculum Press |
| Classification | 510.7 R636t |
| Publisher | Berkeley, CA, Key Curriculum Press, c1993 |
| Subject | Mathematics -- Study and teaching.Mathematical recreations.Problem solving.Mathematics -- Problems, exercises, etc. |
| Description | 50 p., (10 p.) : ill. ; 28 cm. |
| ISBN | 9781559530651 |
| Additional ISBN | 1559530650 |