Todino, G., Strang, J., & O'Reilly, T. (1989). Learning the UNIX operating system (Minor revisions.). O'Reilly & Associates.
Cita Chicago Style (17a ed.)Todino, Grace, John Strang, e Tim O'Reilly. Learning the UNIX Operating System. Minor revisions. Sebastopol, CA: O'Reilly & Associates, 1989.
Cita MLA (8a ed.)Todino, Grace, et al. Learning the UNIX Operating System. Minor revisions. O'Reilly & Associates, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.