APA (7th ed.) Citation

Allen, J. P. B., & Widdowson, H. G. (1974). English in physical science (Student's ed.). Oxford University Press.

Chicago Style (17th ed.) Citation

Allen, J. P. B., and H. G. Widdowson. English in Physical Science. Student's ed. London: Oxford University Press, 1974.

MLA (9th ed.) Citation

Allen, J. P. B., and H. G. Widdowson. English in Physical Science. Student's ed. Oxford University Press, 1974.