Weigle, S. C. (2002). Assessing writing. Cambridge: Cambridge University Press.
Chicago Style aipamenaWeigle, Sara Cushing. Assessing Writing. Cambridge: Cambridge University Press, 2002.
MLA aipamenaWeigle, Sara Cushing. Assessing Writing. Cambridge: Cambridge University Press, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.