APA (7th ed.) Citation

Code, C., & Ball, M. (1984). Instrumentation in speech-language pathology. College-Hill Press.

Chicago Style (17th ed.) Citation

Code, Christopher, and Martin Ball. Instrumentation in Speech-language Pathology. San Diego, CA: College-Hill Press, 1984.

MLA (9th ed.) Citation

Code, Christopher, and Martin Ball. Instrumentation in Speech-language Pathology. College-Hill Press, 1984.