APA (7th ed.) Citation

Russel, C., & Crawford, S. (1998). UNIX & Linux: Answers ! certified tech support. Osborne McGraw-Hill.

Chicago Style (17th ed.) Citation

Russel, Charlie, and Sharon Crawford. UNIX & Linux: Answers ! Certified Tech Support. Berkeley: Osborne McGraw-Hill, 1998.

MLA (9th ed.) Citation

Russel, Charlie, and Sharon Crawford. UNIX & Linux: Answers ! Certified Tech Support. Osborne McGraw-Hill, 1998.