Titles By: Erickson, Tim.| Titles By: Erickson, Tim. |
| Author | Title | Call Number | Status | |
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Erickson, Tim. | Get it together : math problems for groups grades 4-12. | CRC QA39.2.E75 1989 | IN |
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Erickson, Tim. | United we solve : math problems for groups grades 5-10. | CRC QA63.E75 1996 | IN |
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