Egg, Maria When a child is different : a basic guide for parents and friends of mentally retarded children / Maria Egg - London : George Allen & Unwin, 1967 - 155 p. ; 22 cm. - A John Day special education book . Translation of : Ein Kind ist anders ISBN: Rs. 25.00 Subjects--Topical Terms: Children with mental disabilities Dewey Class. No.: 136.766