APA (7th ed.) Citation
American Telephone and Telegraph Company. (1990). UNIX System V, release 4: Network user's and administrator's guide. Prentice-Hall.
Chicago Style (17th ed.) Citation
American Telephone and Telegraph Company. UNIX System V, Release 4: Network User's and Administrator's Guide. Englewood Cliffs, N.J.: Prentice-Hall, 1990.
MLA (9th ed.) Citation
American Telephone and Telegraph Company. UNIX System V, Release 4: Network User's and Administrator's Guide. Prentice-Hall, 1990.
Warning: These citations may not always be 100% accurate.