Secrets of mental math the mathemagician's guide to lightning calculation and amazing math tricks
| Prif Awdur: | |
|---|---|
| Awduron Eraill: | |
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
New York
Three Rivers Press
c2006.
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| Pynciau: | |
| Mynediad Ar-lein: | Table of contents only |