Biber, D. (2002). Longman student grammar of spoken and written English. Longman.
Chicago-čujuhus (17. p.)Biber, Douglas. Longman Student Grammar of Spoken and Written English. Harlow: Longman, 2002.
MLA-čujuhus (9. p.)Biber, Douglas. Longman Student Grammar of Spoken and Written English. Longman, 2002.
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