Wright, E. O. (2000). Class counts: Student edition. Cambridge, U.K.,New York: Cambridge University Press.
Chicago Style aipamenaWright, Erik Olin. Class Counts: Student Edition. Cambridge, U.K.,New York: Cambridge University Press, 2000.
MLA aipamenaWright, Erik Olin. Class Counts: Student Edition. Cambridge, U.K.,New York: Cambridge University Press, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.