Marx Brothers, Metro-Goldwyn-Mayer, Wood, S., Marx, G., Marx, C., Marx, H., . . . Jones, A. (2004). A night at the opera. Warner Bros. Entertainment : Distributed by Warner Home Video.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMarx Brothers, Metro-Goldwyn-Mayer, Sam Wood, Groucho Marx, Chico Marx, Harpo Marx, Kitty Carlisle, और Allan Jones. A Night at the Opera. Burbank, CA: Warner Bros. Entertainment : Distributed by Warner Home Video, 2004.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMarx Brothers, et al. A Night at the Opera. Warner Bros. Entertainment : Distributed by Warner Home Video, 2004.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.