Cita APA (7th ed.)

Brieger, N., & Comfort, J. (1992). Production and operations: English language teaching. Prentice Hall International.

Cita Chicago (17th ed.)

Brieger, Nick, i Jeremy Comfort. Production and Operations: English Language Teaching. New York: Prentice Hall International, 1992.

Cita MLA (9th ed.)

Brieger, Nick, i Jeremy Comfort. Production and Operations: English Language Teaching. Prentice Hall International, 1992.