Gaston Leroux. (2019). "Phantom of the Opera (Young Reading Level 2) [Paperback] [Jan 01, 2010] Gaston LeRoux". FQ Books.
芝加哥风格引文Gaston Leroux. "Phantom of the Opera (Young Reading Level 2) [Paperback] [Jan 01, 2010] Gaston LeRoux". FQ Books, 2019.
MLA引文Gaston Leroux. "Phantom of the Opera (Young Reading Level 2) [Paperback] [Jan 01, 2010] Gaston LeRoux". FQ Books, 2019.
警告：这些引文格式不一定是100％准确.