TY - BOOK AU - Ebert,Mary F.Kosar TI - An investigation of the causal relationship among locus of control, environmental motivators, engaged reading time and reading ability PY - 1980/// CY - Ann Arbor, Mich. PB - University Microfilms International KW - Handicapped children KW - Development KW - Psychological testing KW - Development disabled N1 - Thesis (Ph.D.) - University of Pittsburgh, 1980 ER -