APA (7th ed.) Citation

Goshawke, W., Kelly, I. D. K., & Wigg, J. D. (1987). Computer translation of natural language. Sigma Press ; Halsted Press.

Chicago Style (17th ed.) Citation

Goshawke, Walter, Ian D. K. Kelly, and J. David Wigg. Computer Translation of Natural Language. Wilmslow, United Kingdom : New York: Sigma Press ; Halsted Press, 1987.

MLA (9th ed.) Citation

Goshawke, Walter, et al. Computer Translation of Natural Language. Sigma Press ; Halsted Press, 1987.