APA (7th ed.) Zitazioa

Leiss, E., & Abraham, W. (2014). Modes of modality: Modality, typology, and universal grammar. John Benjamins Publishing Company.

Chicago Style (17th ed.) Zitazioa

Leiss, Elisabeth, eta Werner Abraham. Modes of Modality: Modality, Typology, and Universal Grammar. Amsterdam: John Benjamins Publishing Company, 2014.

MLA (9th ed.) Zitazioa

Leiss, Elisabeth, eta Werner Abraham. Modes of Modality: Modality, Typology, and Universal Grammar. John Benjamins Publishing Company, 2014.