Cita APA (7th ed.)

Gallmeister, B. O. (1995). POSIX.4--programming for the real world. O'Reilly & Associates.

Cita Chicago (17th ed.)

Gallmeister, Bill O. POSIX.4--programming for the Real World. Sebastopol, CA: O'Reilly & Associates, 1995.

Cita MLA (9th ed.)

Gallmeister, Bill O. POSIX.4--programming for the Real World. O'Reilly & Associates, 1995.