Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago

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

Tohutoro MLA

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