Butt, D. (2000). Using functional grammar: An explorer's guide (2nd ed.). Sydney: National centre for English language teaching and research, Macquarie University.
Citação norma ChicagoButt, David. Using Functional Grammar: An Explorer's Guide. 2nd ed. Sydney: National centre for English language teaching and research, Macquarie University, 2000.
Citação norma MLAButt, David. Using Functional Grammar: An Explorer's Guide. 2nd ed. Sydney: National centre for English language teaching and research, Macquarie University, 2000.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.