APA aipamena

International Federation for Systems Research. Systems research: Syst. res. Oxford ; New York: Pergamon Press.

Chicago Style aipamena

International Federation for Systems Research. Systems Research: Syst. Res. Oxford ; New York: Pergamon Press.

MLA aipamena

International Federation for Systems Research. Systems Research: Syst. Res. Oxford ; New York: Pergamon Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.