APA (7th ed.) Citation

Checkland, P., & Scholes, J. (1997). Soft systems methodology in action. Wiley & Sons.

Chicago Style (17th ed.) Citation

Checkland, Peter, and Jim Scholes. Soft Systems Methodology in Action. Chichester [etc.]: Wiley & Sons, 1997.

MLA (9th ed.) Citation

Checkland, Peter, and Jim Scholes. Soft Systems Methodology in Action. Wiley & Sons, 1997.