Cita APA (7a ed.)

Bourdon, R. J. (1987). The Pick operating system: A practical guide. Addison-Wesley.

Cita Chicago Style (17a ed.)

Bourdon, Roger J. The Pick Operating System: A Practical Guide. Wokingham [etc.]: Addison-Wesley, 1987.

Cita MLA (9a ed.)

Bourdon, Roger J. The Pick Operating System: A Practical Guide. Addison-Wesley, 1987.