Butt, D., Fahey, R., Feez, S., Spinks, S., & Yallop, C. (2000). Using functional grammar: An explorer's guide (2a. ed.). National Centre for English Language Teaching and Research.
Chicago-Zitierstil (17. Ausg.)Butt, David, Rhondda Fahey, Susan Feez, Sue Spinks, und Colin Yallop. Using Functional Grammar: An Explorer's Guide. 2a. ed. Sydney: National Centre for English Language Teaching and Research, 2000.
MLA-Zitierstil (9. Ausg.)Butt, David, et al. Using Functional Grammar: An Explorer's Guide. 2a. ed. National Centre for English Language Teaching and Research, 2000.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.