Paramount Home Entertainment (Firm), Joost, H., Schulman, A., Featherston, K., Newton, K., Dunham, S., . . . Lee, A. (2013). Paranormal activity 4 (Unrated ed.). Paramount Home Entertainment.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रParamount Home Entertainment (Firm), Henry Joost, Ariel Schulman, Katie Featherston, Kathryn Newton, Stephen Dunham, Matt Shively, और Alexondra Lee. Paranormal Activity 4. Unrated ed. Hollywood, Calif.: Paramount Home Entertainment, 2013.
एमएलए (8वां संस्करण) प्रशस्ति पत्रParamount Home Entertainment (Firm), et al. Paranormal Activity 4. Unrated ed. Paramount Home Entertainment, 2013.
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