Style de citation APA (7e éd.)

ebrary, Inc, Cyffer, N., Ebermann, E., & Ziegelmeyer, G. (2009). Negation patterns in West African languages and beyond. John Benjamins Pub. Co..

Style de citation Chicago (17e éd.)

ebrary, Inc, Norbert Cyffer, Erwin Ebermann, et Georg Ziegelmeyer. Negation Patterns in West African Languages and Beyond. Amsterdam ; Philadelphia: John Benjamins Pub. Co., 2009.

Style de citation MLA (9e éd.)

ebrary, Inc, et al. Negation Patterns in West African Languages and Beyond. John Benjamins Pub. Co., 2009.