Galton, F. (1879). Psychometric experiments. Brain, 2(2), 149-162. doi:10.1093/brain/2.2.149. [FULLTEXT]
A History of Psycholinguistics
Bibliography for Levelt (2013)
Galton, F. (1879). Psychometric experiments. Brain, 2(2), 149-162. doi:10.1093/brain/2.2.149. [FULLTEXT]