Irwin, O. C. (1941). The profile as a visual device for indicating central tendencies in speech data. Child Development, 12, 111-120. [FULLTEXT]
A History of Psycholinguistics
Bibliography for Levelt (2013)
Irwin, O. C. (1941). The profile as a visual device for indicating central tendencies in speech data. Child Development, 12, 111-120. [FULLTEXT]