Les Sternberg 
Functional Communication [PDF ebook] 
Analyzing the Nonlinguistic Skills of Individuals with Severe or Profound Handicaps

DEVELOPMENT OF NON-LINGUISTIC COMMUNICATION SKILLS, whichpresents the results of research accomplished through thejoint sponsorship of the Sonoma Development Center (SDS) andthe College of Education of Florida Atlantic University(FAU), examines the development of prelanguage and nonlingu-istic skills in individuals with various types and degreesof developmental disabilities. Utilizing the dichotomiesthat may exist betweencommunication and language, the bookexplores communication skills rather than formal languagesystems acquisition.