APA (7th ed.) Citation

Anderson, B., Costales, B., & Henderson, H. (1991). Unix communications (2nd ed.). Sams.

Chicago Style (17th ed.) Citation

Anderson, Bart, Bryan Costales, and Harry Henderson. Unix Communications. 2nd ed. Carmel, Ind., USA: Sams, 1991.

MLA (9th ed.) Citation

Anderson, Bart, et al. Unix Communications. 2nd ed. Sams, 1991.