:Checkland Peter. (1999). Systems thinking, systems practice: Includes a 30-year retrospective. John Wiley.
Chicago Style (17th ed.) Citation:Checkland Peter. Systems Thinking, Systems Practice: Includes a 30-year Retrospective. Chichester: John Wiley, 1999.
MLA (9th ed.) Citation:Checkland Peter. Systems Thinking, Systems Practice: Includes a 30-year Retrospective. John Wiley, 1999.
Warning: These citations may not always be 100% accurate.