APA-čujuhus (7. p.)
Barnes, J. D. (2006). Early trilingualism: A focus on questions. Multilingual Matters.
Chicago-čujuhus (17. p.)
Barnes, Julia D. Early Trilingualism: A Focus on Questions. Clevedon, England ; Buffalo: Multilingual Matters, 2006.
MLA-čujuhus (9. p.)
Barnes, Julia D. Early Trilingualism: A Focus on Questions. Multilingual Matters, 2006.
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