LEADER 00000nam 2200217 a 4500 001 0632397 003 UkHlHU 007 t 008 000505 2 1960 000 eng 040 UkHlHU 050 4 ILV U5 110 2 United States. Office of Education. 245 00 Motor characteristics of the mentally retarded. 260 Washington :|bG.P.O.,|c1960. 300 0000p. 700 0 Francis, Robert J. 700 0 Rarick, G.L. 946 6XX absent
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