APA (7th ed.) Citation

Clemmow, P. C. (1973). An Introduction to electromagnetic theory. Cambridge University Press.

Chicago Style (17th ed.) Citation

Clemmow, P. C. An Introduction to Electromagnetic Theory. Cambridge: Cambridge University Press, 1973.

MLA (9th ed.) Citation

Clemmow, P. C. An Introduction to Electromagnetic Theory. Cambridge University Press, 1973.