Schon, D. A. (1971). Beyond the stable state. Norton Library.
Cita Chicago (17th ed.)Schon, Donald A. Beyond the Stable State. New York: Norton Library, 1971.
Cita MLA (9th ed.)Schon, Donald A. Beyond the Stable State. Norton Library, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.