Cita APA (7a ed.)

Checkland, P., & Scholes, J. (1996). Soft systems methodology in action. Wiley & Sons.

Cita Chicago Style (17a ed.)

Checkland, Peter, y Jim Scholes. Soft Systems Methodology in Action. Chichester [etc.]: Wiley & Sons, 1996.

Cita MLA (9a ed.)

Checkland, Peter, y Jim Scholes. Soft Systems Methodology in Action. Wiley & Sons, 1996.