URI(s)
Identifies LC/NAF RWO
Identifies RWO
Exact Matching Concepts from Other Schemes
Closely Matching Concepts from Other Schemes
Sources
- found: Holt, M. More math puzzles and games, 1978 (a.e.)t.p. (Pat Hickman)
Instance Of
Scheme Membership(s)
Collection Membership(s)
Change Notes
- 1980-12-17: new
- 2009-02-03: revised
Alternate Formats