Butler, C. (2005). Focusing on focus: A comparison of Functional Grammar, Role and Reference Grammar and Systemic Functional Grammar. Language Sciences, 27(6), pp. 585-618. doi:10.1016/j.langsci.2005.07.004
Chicago Style CitationButler, Christopher. "Focusing On Focus: A Comparison of Functional Grammar, Role and Reference Grammar and Systemic Functional Grammar." Language Sciences 27, no. 6 (2005): 585-618.
MLA CitationButler, Christopher. "Focusing On Focus: A Comparison of Functional Grammar, Role and Reference Grammar and Systemic Functional Grammar." Language Sciences 27.6 (2005): 585-618.
Warning: These citations may not always be 100% accurate.