LEADER 00000nam 2200313 a 4500 001 0417052 003 UkHlHU 007 t 008 001609 1 1976 000 eng 040 UkHlHU 050 4 RC 569.9 A6 110 2 Application of observational/ethological methods to the study of mental retardation (Conference), Lake Wilderness, Washington, 1976. 245 00 Observing behavior /|cedited by G.P. Sackett. 260 Baltimore, Md. :|bUniversity Park Press,|c1976. 300 2p. 440 0 N.I.C.H.D.- Mental Retardation Research Centers series 650 0 Mentally ill. 650 0 Psychiatry. 650 0 People with disabilities|xWelfare. 650 0 Mentally ill. 650 0 People with disabilities. 700 0 Sackett, Gene P. 710 2 National Institute of Child Health and Human Development. 710 2 Child Development and Mental Retardation Centre. 946 020 absent -- ISBN check required 946 650 has non-LCSH elements -- Check for Geac subject headings
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