LEADER 00000nam 2200181 a 4500 001 0091749 003 UkHlHU 007 t 008 001908 0 1977 000 eng 040 UkHlHU 050 4 HV 3006 A4 K9 100 0 Kurtz, Richard A. 245 00 Social aspects of mental retardation. 260 Lexington, Mass. :|bHeath,|c1977. 300 176p. 946 020 absent -- ISBN check required 946 6XX absent
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