APA (7th ed.) Citation

Gwyther, J. L., Brown, W. D., & Williams, G. (1970). O. 1 mechanical engineering science in SI units. Heinemann Educational.

Chicago Style (17th ed.) Citation

Gwyther, John Lionel, William Donald Brown, and G. Williams. O. 1 Mechanical Engineering Science in SI Units. London: Heinemann Educational, 1970.

MLA (9th ed.) Citation

Gwyther, John Lionel, et al. O. 1 Mechanical Engineering Science in SI Units. Heinemann Educational, 1970.