APA aipamena

Davies, L. (1991). Information in action: Soft systems methodology. London: MacMillan.

Chicago Style aipamena

Davies, Lynda. Information in Action: Soft Systems Methodology. London: MacMillan, 1991.

MLA aipamena

Davies, Lynda. Information in Action: Soft Systems Methodology. London: MacMillan, 1991.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.