APA (7th ed.) Citation

Curry, D. A. (1989). Using C on the UNIX system: A guide to system programming. O'Reilly.

Chicago Style (17th ed.) Citation

Curry, David A. Using C on the UNIX System: A Guide to System Programming. Sebastopol: O'Reilly, 1989.

MLA (9th ed.) Citation

Curry, David A. Using C on the UNIX System: A Guide to System Programming. O'Reilly, 1989.