Understanding the slide rule Ronald E. Johnson, Charles J. Marshall, Edwena B. Moore; William Mann, editor .
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| Rannpháirtithe: | , , |
| Formáid: | LEABHAR |
| Teanga: | English |
| Foilsithe / Cruthaithe: |
San Diego, Cal.
Dept. of Education
c1961.
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| Ábhair: |