Παραπομπή APA

Krone, R. M. (1980). Systems analysis and policy sciences: Theory and practice. New York: John Wiley & Sons.

Παραπομπή Chicago Style

Krone, Robert M. Systems Analysis and Policy Sciences: Theory and Practice. New York: John Wiley & Sons, 1980.

Παραπομπή MLA

Krone, Robert M. Systems Analysis and Policy Sciences: Theory and Practice. New York: John Wiley & Sons, 1980.

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