APA (7th ed.) Citation

Espejo, R., & Harnden, R. (1989). The Viable system model: Interpretations and applications of Stafford Beer's vsm. J. Wiley.

Chicago Style (17th ed.) Citation

Espejo, Raul, and Roger Harnden. The Viable System Model: Interpretations and Applications of Stafford Beer's Vsm. Chichester, West Sussex, England ; New York: J. Wiley, 1989.

MLA (9th ed.) Citation

Espejo, Raul, and Roger Harnden. The Viable System Model: Interpretations and Applications of Stafford Beer's Vsm. J. Wiley, 1989.