APA (7th ed.) Citation

Redmill, F. J., & Valdar, A. R. (1990). SPC: Digital telephone exchanges. Peregrinus.

Chicago Style (17th ed.) Citation

Redmill, Felix J., and Andy R. Valdar. SPC: Digital Telephone Exchanges. London: Peregrinus, 1990.

MLA (9th ed.) Citation

Redmill, Felix J., and Andy R. Valdar. SPC: Digital Telephone Exchanges. Peregrinus, 1990.