APA (7th ed.) Citation

Davies, D., & Pickett, D. (1990). Preparing for English for commerce. Prentice-Hall.

Chicago Style (17th ed.) Citation

Davies, David, and Douglas Pickett. Preparing for English for Commerce. New York: Prentice-Hall, 1990.

MLA (9th ed.) Citation

Davies, David, and Douglas Pickett. Preparing for English for Commerce. Prentice-Hall, 1990.