APA (7th ed.) Citation

Redmill, F., & Valdar, A. R. (1990). SPC digital telephone exchanges. Peter Peregrinus on behalf of the Institution of Electrical Engineers.

Chicago Style (17th ed.) Citation

Redmill, Felix, and A. R. Valdar. SPC Digital Telephone Exchanges. London, U.K.: Peter Peregrinus on behalf of the Institution of Electrical Engineers, 1990.

MLA (9th ed.) Citation

Redmill, Felix, and A. R. Valdar. SPC Digital Telephone Exchanges. Peter Peregrinus on behalf of the Institution of Electrical Engineers, 1990.

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