Arnold, L. G. (2002). Business cycle theory. Oxford University Press.
Chicago Style aipamenaArnold, Lutz G. Business Cycle Theory. Oxford: Oxford University Press, 2002.
MLA aipamenaArnold, Lutz G. Business Cycle Theory. Oxford University Press, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.