APA (7th ed.) Citation

Howatt, A., Webb, J., & Knight, M. (1976). A modern course in business English (New ed.). Oxford University Press.

Chicago Style (17th ed.) Citation

Howatt, Anthony, John Webb, and Michael Knight. A Modern Course in Business English. New ed. Oxford, UK: Oxford University Press, 1976.

MLA (9th ed.) Citation

Howatt, Anthony, et al. A Modern Course in Business English. New ed. Oxford University Press, 1976.