APA (7th ed.) Citation

Gray, H. J., & Isaacs, A. (1976). A new dictionary of physics. Longman.

Chicago Style (17th ed.) Citation

Gray, H. J., and Alan Isaacs. A New Dictionary of Physics. London: Longman, 1976.

MLA (9th ed.) Citation

Gray, H. J., and Alan Isaacs. A New Dictionary of Physics. Longman, 1976.