Books & Monographs
Carle, N. (2011). Wolf Wolfensberger: the definitive agent of change. Community Living, 24 (4), 22-23.
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Shafer, M.S., Middaugh, A., Rubin, M. & Jones, R. (1995). Best practices in the vocational rehabilitation of persons with serious mental illness. Tucson: Community Rehabilitation Division, University of Arizona Health Sciences Center.
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Kregel, J., Wehman, P. H., & Shafer, M.S. (1990). Competitive employment for persons with severe disabilities: from research to practice, Volume III. Richmond: Rehabilitation Research and Training Center, Virginia Commonwealth University.
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Wehman, P.H., Kregel, J., & Shafer, M.S. (1989). Emerging trends in the national supported employment initiative: A preliminary analysis of twenty-seven states. Richmond: Rehabilitation Research and Training Center, Virginia Commonwealth University.
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Wehman, P.H., Kregel, J., Shafer, M.S., & Hill, M.L. (1987). Competitive employment for persons with mental retardation: from research to practice, Volume II. Richmond: Rehabilitation Research and Training Center, Virginia Commonwealth University.

