Williams, P., Gruber, E., & Gittins, C. E. Response to special schooling: An investigation concerned with children from special schools for the educationally subnormal. Longmans.
Παραπομπή σε μορφή Chicago (17η εκδ.)Williams, Phillip, Elisabeth Gruber, και Charles E. Gittins. Response to Special Schooling: An Investigation Concerned with Children from Special Schools for the Educationally Subnormal. [London]: Longmans.
Παραπομπή σε μορφή MLA (9th εκδ.)Williams, Phillip, et al. Response to Special Schooling: An Investigation Concerned with Children from Special Schools for the Educationally Subnormal. Longmans.
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