00836cam a2200253 4500 4386 4386 4142687 OSt 20191107095141.0 720515s1972 ilu b 001 0 eng 77169883 0398023220 DLC DLC DLC RJ496.C4 I78 618.92836 IRW Irwin, Orvis C. (Orvis Carl), 1891- Communication variables of cerebral palsied and mentally retarded children, by Orvis C. Irwin. With a foreword by Dorothea McCarthy. Springfield, Ill., C. C. Thomas [1972] xxvii, 370 p. 24 cm. Bibliography: p. 359-365. Cerebral palsied children. Communicative disorders in children. 7 cbc orignew 2 ncip 19 y-gencatlg ddc STS 0 0 ddc 0 0 98/4 AIISH AIISH 2019-11-07 0 618.92836 IRW 6543 2019-11-07 00:00:00 2019-11-07 STS