एपीए उद्धरण

Stephen R Bourne. (1987). The UNIX system v enviornment. Addison-Wesley Publishing.

शिकागो स्टाइल उद्धरण

Stephen R Bourne. The UNIX System V Enviornment. Addison-Wesley Publishing, 1987.

एमएलए उद्धरण

Stephen R Bourne. The UNIX System V Enviornment. Addison-Wesley Publishing, 1987.