ebrary, Inc, Cyffer, N., Ebermann, E., & Ziegelmeyer, G. (2009). Negation patterns in West African languages and beyond. John Benjamins Pub. Co..
Čikaški stil citiranja (17. izdanje)ebrary, Inc, Norbert Cyffer, Erwin Ebermann, i Georg Ziegelmeyer. Negation Patterns in West African Languages and Beyond. Amsterdam ; Philadelphia: John Benjamins Pub. Co., 2009.
MLA način citiranja (9. izdanje)ebrary, Inc, et al. Negation Patterns in West African Languages and Beyond. John Benjamins Pub. Co., 2009.
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