APA (7th ed.) Citation

Checkland, P. (1999). Soft systems methodolgy: A 30-year retrospective. John Wiley & Sons, Ltd.

Chicago Style (17th ed.) Citation

Checkland, Peter. Soft Systems Methodolgy: A 30-year Retrospective. John Wiley & Sons, Ltd, 1999.

MLA (8th ed.) Citation

Checkland, Peter. Soft Systems Methodolgy: A 30-year Retrospective. John Wiley & Sons, Ltd, 1999.

Warning: These citations may not always be 100% accurate.