APA (7th ed.) Citation

Clemmow, P. C. (1973). An introduction to electromagnetic theory. The University Press.

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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