Shelds , M. (2010). Essay Writing. Sage.
Chicago Style aipamenaShelds , Munling. Essay Writing. Delhi: Sage, 2010.
MLA aipamenaShelds , Munling. Essay Writing. Sage, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
Shelds , M. (2010). Essay Writing. Sage.
Chicago Style aipamenaShelds , Munling. Essay Writing. Delhi: Sage, 2010.
MLA aipamenaShelds , Munling. Essay Writing. Sage, 2010.