APA (7th ed.) Citation
ebrary, Inc, Verhoeven, L. T., & Jong, J. H. A. L. d. (1992). The construct of language proficiency: Applications of psychological models to language assessment. John Benjamins Pub. Co..
Chicago Style (17th ed.) Citation
ebrary, Inc, Ludo Th Verhoeven, and John H. A. L. de Jong. The Construct of Language Proficiency: Applications of Psychological Models to Language Assessment. Amsterdam ; Philadelphia: John Benjamins Pub. Co., 1992.
MLA (9th ed.) Citation
ebrary, Inc, et al. The Construct of Language Proficiency: Applications of Psychological Models to Language Assessment. John Benjamins Pub. Co., 1992.
Warning: These citations may not always be 100% accurate.