Jay, S. (2009). Rules of Thumb: A Guide for Writers. Mc Graw Hill Higher Education.
Chicago Style aipamenaJay, Silverman. Rules of Thumb: A Guide for Writers. Mc Graw Hill Higher Education, 2009.
MLA aipamenaJay, Silverman. Rules of Thumb: A Guide for Writers. Mc Graw Hill Higher Education, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.