Gaya APA

Vijver, E, B, F, K, C, F, R, V, D. (). Variation and gradience in phonetics and phonology 4 . : Mouton de Gruyter.

Gaya MLA

Vijver, Edited, By, Frank, Kugler,, Caroline, Fery,, Ruben, Van, De. "Variation and gradience in phonetics and phonology 4". : Mouton de Gruyter, . Text.