Underwood, B. J. (1950). Gradients of generalized verbal responses. American Journal of Psychology, 63, 422-430. doi:10.2307/1418006. [FULLTEXT]
A History of Psycholinguistics
Bibliography for Levelt (2013)
Underwood, B. J. (1950). Gradients of generalized verbal responses. American Journal of Psychology, 63, 422-430. doi:10.2307/1418006. [FULLTEXT]