9781783749256.pdf
Simplified Signs presents a system of manual sign communication intended for special populations who have had limited success mastering spoken or full sign languages. It is the culmination of over twenty years of research and development by the authors. The Simplified Sign System has been developed...
| Γλώσσα: | English |
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| Έκδοση: |
Open Book Publishers
2020
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| Διαθέσιμο Online: | https://www.openbookpublishers.com/product/1165 |
