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.
Citace podle Chicago (17th ed.)Butt, David, Rhondda Fahey, Susan Feez, Sue Spinks, a Colin Yallop. Using Functional Grammar: An Explorer's Guide. 2a. ed. Sydney: National Centre for English Language Teaching and Research, 2000.
Citace podle MLA (9th ed.)Butt, David, et al. Using Functional Grammar: An Explorer's Guide. 2a. ed. National Centre for English Language Teaching and Research, 2000.
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