APA (7th ed.) Citation
Lewis, G. E. Communications Systems: Engineers' Choices (3a edición.). Butterworth.
Chicago Style (17th ed.) Citation
Lewis, Geoffrey E. Communications Systems: Engineers' Choices. 3a edición. Oxford, Inglaterra: Butterworth.
MLA (9th ed.) Citation
Lewis, Geoffrey E. Communications Systems: Engineers' Choices. 3a edición. Butterworth.
Warning: These citations may not always be 100% accurate.