APA (7th ed.) Citation

Smol, G., Hamer, M. P. R., & Hills, M. T. (1976). Telecommunications: A systems approach. Allen and Unwin.

Chicago Style (17th ed.) Citation

Smol, G., Malcolm P. R. Hamer, and M. T. Hills. Telecommunications: A Systems Approach. London: Allen and Unwin, 1976.

MLA (9th ed.) Citation

Smol, G., et al. Telecommunications: A Systems Approach. Allen and Unwin, 1976.