APA-čujuhus (7. p.)
ebrary, Inc, Salkie, R., Busuttil, P., & Auwera, J. v. d. (2009). Modality in English: Theory and description. Mouton de Gruyter.
Chicago-čujuhus (17. p.)
ebrary, Inc, Raphael Salkie, Pierre Busuttil, juo Johan van der Auwera. Modality in English: Theory and Description. Berlin ; New York: Mouton de Gruyter, 2009.
MLA-čujuhus (9. p.)
ebrary, Inc, et al. Modality in English: Theory and Description. Mouton de Gruyter, 2009.
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