Ball, M. J., Crystal, D., & Fletcher, P. (2012). Assessing grammar: The languages of LARSP. Multilingual Matters.
Čikaški stil citiranja (17. izdanje)Ball, Martin J., David Crystal, i Paul Fletcher. Assessing Grammar: The Languages of LARSP. Bristol ; Buffalo: Multilingual Matters, 2012.
MLA način citiranja (8. izdanje)Ball, Martin J., et al. Assessing Grammar: The Languages of LARSP. Multilingual Matters, 2012.
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