Frisbie, J. H. (2011). Letter to the Editor. Maney Publishing.
Chicago Style aipamenaFrisbie, James H. Letter to the Editor. Maney Publishing, 2011.
MLA aipamenaFrisbie, James H. Letter to the Editor. Maney Publishing, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.