APA (7th ed.) Citation

Zahn, C. T. (1979). C notes: A guide to the c programming language. Yourdon Press.

Chicago Style (17th ed.) Citation

Zahn, C. T. C Notes: A Guide to the C Programming Language. New York, NY: Yourdon Press, 1979.

MLA (9th ed.) Citation

Zahn, C. T. C Notes: A Guide to the C Programming Language. Yourdon Press, 1979.