00386nam a22000977a 4500020001500000082001400015100001800029245013600047260005400183650005100237  a0333237188  a371.9 SOM  aTrevor Tebbs,  aWays and means :b a resource book of aids, methods, materials and systems for use with the language retarded child /cTrevor Tebbs  aLondon : bSomerset Education Authority, c©1978  aChildren with mental disabilities -- Education