APA (7th ed.) Citation

Portis, A. M. (1978). Electromagnetic fields: Sources and media. John Wiley.

Chicago Style (17th ed.) Citation

Portis, Alan M. Electromagnetic Fields: Sources and Media. Nueva York: John Wiley, 1978.

MLA (9th ed.) Citation

Portis, Alan M. Electromagnetic Fields: Sources and Media. John Wiley, 1978.