3-dimensional optical illusions to color & construct /
| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
San Francisco, Calif. :
Troubadour [sic] Press,
[1977]
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| Subjects: |
| Physical Description: | 31 pages : illustrations ; 32 cm. |
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| ISBN: | 0912300787 |