An inquiry into the teaching of addition and subtraction ..
Book details
- Title
- An inquiry into the teaching of addition and subtraction ..
- Publication year listed
- 1901
- Format
- Public domain eBook
- Reading access
- Free online reader; no registration required
- Source record
- View on Archive.org
About this book
An inquiry into the teaching of addition and subtraction ..
Author: Yocum, A. Duncan (Albert Duncan), b. 1869
Year: 1901
Thesis (PH. D.)--University of Pennsylvania
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