APA-čujuhus (7. p.)
Butler, D. (2015). Developing international EFL/ESL scholarly writers. De Gruyter Mouton.
Chicago-čujuhus (17. p.)
Butler, Donna. Developing International EFL/ESL Scholarly Writers. Boston: De Gruyter Mouton, 2015.
MLA-čujuhus (9. p.)
Butler, Donna. Developing International EFL/ESL Scholarly Writers. De Gruyter Mouton, 2015.
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