Cita APA

American Telephone and Telegraph Company. (1989). UNIX system V release 3.2. Programmer’s reference manual. Englewood Cliffs, N.J: Prentice Hall.

Chicago Style Citation

American Telephone and Telegraph Company. UNIX System V Release 3.2. Programmer’s Reference Manual. Englewood Cliffs, N.J: Prentice Hall, 1989.

Cita MLA

American Telephone and Telegraph Company. UNIX System V Release 3.2. Programmer’s Reference Manual. Englewood Cliffs, N.J: Prentice Hall, 1989.