000 00339nam a2200121Ia 4500
100 _aCoupe, Judith and Goldbart, Juliet
020 _a0-7099-4848-4
942 _cBK
245 _aCommunication before speech
_bNormal development and impaired communication
260 _aCroom helm, London
_c1988
082 _a155.413 Cou/Gol
300 _a129
999 _c61517
_d61517