Smith Ph.D. BCBA D, Christopher books & textbook
Communication-Based Intervention for Problem Behavior: A User's Guide for Producing Positive Change
Carr Ph.D., Edward Levin M.A., Len McConnachie Ph.D., Gene Carlson M.A., Jane Kemp Ph.D., Duane Smith "Ph.D. BCBA-D", Christopher
Brookes Publishing /1994-06-30 Paperback / 282 Pages
isbn-10: 1557661596 / isbn-13: 9781557661593