Ostrom, E. (2005). Understanding institutional diversity. Princeton University Press.
Chicago Style aipamenaOstrom, Elinor. Understanding Institutional Diversity. Princeton: Princeton University Press, 2005.
MLA aipamenaOstrom, Elinor. Understanding Institutional Diversity. Princeton University Press, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.