Hildebrandt, G., & Leroux, G. (1993). Phantom of the Opera. The Unicorn Publishing House.
Chicago-čujuhus (17. p.)Hildebrandt, Greg, juo Gaston Leroux. Phantom of the Opera. New Jersey: The Unicorn Publishing House, 1993.
MLA-čujuhus (9. p.)Hildebrandt, Greg, juo Gaston Leroux. Phantom of the Opera. The Unicorn Publishing House, 1993.
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