Cita APA (7th ed.)

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.

Cita Chicago (17th ed.)

Butt, David, Rhondda Fahey, Susan Feez, Sue Spinks, i Colin Yallop. Using Functional Grammar: An Explorer's Guide. 2a. ed. Sydney: National Centre for English Language Teaching and Research, 2000.

Cita 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.