APA (7th ed.) Citation

Richards, D. L. (1973). Telecommunication by speech: The transmission performance of telephone networks. Butterworths.

Chicago Style (17th ed.) Citation

Richards, D. L. Telecommunication by Speech: The Transmission Performance of Telephone Networks. London: Butterworths, 1973.

MLA (8th ed.) Citation

Richards, D. L. Telecommunication by Speech: The Transmission Performance of Telephone Networks. Butterworths, 1973.

Warning: These citations may not always be 100% accurate.