Cita APA (7th ed.)
Steen, M. (2014). Verdi's Il Trovatore: A short guide to a great opera. Original Writing.
Cita Chicago (17th ed.)
Steen, Michael. Verdi's Il Trovatore: A Short Guide to a Great Opera. Dublin, Ireland: Original Writing, 2014.
Cita MLA (9th ed.)
Steen, Michael. Verdi's Il Trovatore: A Short Guide to a Great Opera. Original Writing, 2014.
Atenció: Aquestes cites poden no estar 100% correctes.