APA Style
Checkland, Peter. (1999).
Systems Thinking, Systems Practice .
England:
John Wiley & Sons.
Chicago Style
Checkland, Peter.
Systems Thinking, Systems Practice.
England:
John Wiley & Sons,
1999.
Text.
MLA Style
Checkland, Peter.
Systems Thinking, Systems Practice.
England:
John Wiley & Sons,
1999.
Text.
Turabian Style
Checkland, Peter.
Systems Thinking, Systems Practice.
England:
John Wiley & Sons,
1999.
Print.