Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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