Visual and spoken reinforcement vs. spoken reinforcement on spelling achievement of secondary mental retardates
By: by Robert R. Campbell.
Published: 1982
Place of publication: [Bellingham]
Language: eng
Number of pages: 28
Subjects: Children with mental disabilities -- Education -- Spelling.; English language -- Orthography and spelling -- Study and teaching (Secondary); Children with mental disabilities -- Education (Secondary)
Notes: Thesis (M.Ed.) - Western Washington University.

Bibliography: leaves 22-24.