Birchall, D., & Tovstiga, G. (2002). Future proofing. Capstone].
Cita Chicago (17th ed.)Birchall, David, i George Tovstiga. Future Proofing. [Oxford: Capstone], 2002.
Cita MLA (9th ed.)Birchall, David, i George Tovstiga. Future Proofing. Capstone], 2002.
Atenció: Aquestes cites poden no estar 100% correctes.