APA (7th ed.) Citation

American Telephone and Telegraph Company. (1990). UNIX System V/386, release 4: MULTIBUS reference manual. Unix Press.

Chicago Style (17th ed.) Citation

American Telephone and Telegraph Company. UNIX System V/386, Release 4: MULTIBUS Reference Manual. Englewood Cliffs, N.J.: Unix Press, 1990.

MLA (9th ed.) Citation

American Telephone and Telegraph Company. UNIX System V/386, Release 4: MULTIBUS Reference Manual. Unix Press, 1990.