Checkland, P. (1981). Systems thinking, systems practice. J. Wiley.
Chicagoスタイル(17版)引用形式Checkland, Peter. Systems Thinking, Systems Practice. Chichester [Sussex] New York: J. Wiley, 1981.
MLA(9版)引用形式Checkland, Peter. Systems Thinking, Systems Practice. J. Wiley, 1981.
警告: この引用は必ずしも正確ではありません.