Francois, C. (1997). International encyclopedia of systems and cybernetics. Saur.
Cita Chicago (17th ed.)Francois, Charles. International Encyclopedia of Systems and Cybernetics. Munchen: Saur, 1997.
Cita MLA (9th ed.)Francois, Charles. International Encyclopedia of Systems and Cybernetics. Saur, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.