Ervins, S. M., & Osgood, C. E. (1954). Second language learning and bilingualism. Journal of Abnormal and Social Psychology, 49, 139-145. [FULLTEXT]
A History of Psycholinguistics
Bibliography for Levelt (2013)
Ervins, S. M., & Osgood, C. E. (1954). Second language learning and bilingualism. Journal of Abnormal and Social Psychology, 49, 139-145. [FULLTEXT]