"Official website". CinemaScore. Archived from the original on January 2, 2018. Retrieved October 28, 2017. Type the film's title into the 'Find Cinemascore' search box.
"Official website". CinemaScore. Archived from the original on January 2, 2018. Retrieved October 28, 2017. Type the film's title into the 'Find Cinemascore' search box.
worldcat.org
Grey, Ian (September 1999). "Stir of Echoes: A Chicago Ghost Story". Fangoria. Vol. 186. pp. 20–24, 82. ISSN0164-2111.