Irwin, O. C. (1942). The developmental status of speech sounds of ten feeble-minded children. Child Development, 13, 29-39. [FULLTEXT]
A History of Psycholinguistics
Bibliography for Levelt (2013)
Irwin, O. C. (1942). The developmental status of speech sounds of ten feeble-minded children. Child Development, 13, 29-39. [FULLTEXT]