TY - BOOK AU - Trainer,Marilyn TI - Differences in common: straight talk on mental retardation, Down syndrome, and life SN - 0933149409 : AV - RJ506.D68 T73 1991 U1 - 362.1/9685842 20 PY - 1991/// CY - Rockville, Md. PB - Woodbine House KW - Down syndrome ER -