Playtone (Firm), Twentieth Century Fox Home Entertainment, Inc, Kenan, G., Ryall, D., Treadaway, H., Robbins, T., & Duprau, J. (2009). City of Ember. 20th Century Fox Home Entertainment.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPlaytone (Firm), Inc Twentieth Century Fox Home Entertainment, Gil Kenan, David Ryall, Harry Treadaway, Tim Robbins, और Jeanne Duprau. City of Ember. Beverly Hills, Calif.: 20th Century Fox Home Entertainment, 2009.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPlaytone (Firm), et al. City of Ember. 20th Century Fox Home Entertainment, 2009.
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