APA (7th ed.) Citation
ebrary, Inc, Kügler, F., Féry, C., & Vijver, R. F. H. E. v. d. (2009). Variation and gradience in phonetics and phonology. Mouton de Gruyter.
Chicago Style (17th ed.) Citation
ebrary, Inc, Frank Kügler, Caroline Féry, and Ruben Florentius Hendricus Eduardus van de Vijver. Variation and Gradience in Phonetics and Phonology. New York, NY: Mouton de Gruyter, 2009.
MLA (9th ed.) Citation
ebrary, Inc, et al. Variation and Gradience in Phonetics and Phonology. Mouton de Gruyter, 2009.
Warning: These citations may not always be 100% accurate.