APA (7th ed.) Citation

Westall, F., & Johnston, R. (1998). Speech technology for telecommunications. Chapman & Hall.

Chicago Style (17th ed.) Citation

Westall, F.A, and R.D Johnston. Speech Technology for Telecommunications. London: Chapman & Hall, 1998.

MLA (9th ed.) Citation

Westall, F.A, and R.D Johnston. Speech Technology for Telecommunications. Chapman & Hall, 1998.