APA (7th ed.) Citation
Redmill, F. J., & Valdar, A. R. (1994). SPC digital telephone exchanges (rev.ed.). Peter Peregrinus.
Chicago Style (17th ed.) Citation
Redmill, Felix J., and Andy R. Valdar. SPC Digital Telephone Exchanges. rev.ed. London: Peter Peregrinus, 1994.
MLA (9th ed.) Citation
Redmill, Felix J., and Andy R. Valdar. SPC Digital Telephone Exchanges. rev.ed. Peter Peregrinus, 1994.
Warning: These citations may not always be 100% accurate.