Simplified signs. a manual sign-communication system for special populations / Volume 1, Principles, background, and application :

Bonvillian, John D.,

Simplified signs. a manual sign-communication system for special populations / Volume 1, Principles, background, and application : John D. Bonvillian [and three others] ; illustrated by Val Nelson-Metlay. - 1 online resource (xxiv, 621 pages) : illustrations

9781783749256


Sign language.


Electronic books.

HV2474 / .B668 2020

419