Improving the communication of people with Down syndrome

Author：edited by Jon F. Miller, Mark Leddy, and Lewis A. Leavitt.
Publisher：Paul H. Brookes Pub.
ISBN：1557663505
Publication Date：c1999.
其他作者：Miller, Jon F. ; Leddy, Mark Gene. ; Leavitt, Lewis A.
語言：zh
出版地：Baltimore, MD :
Description

xiii, 289 p. ::ill. ;:23 cm.

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