National Geographic Television & Film & Ballard, R. D. (2012). Alien deep. [Distributed by] Gaiam/Vivendi Entertainment.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNational Geographic Television & Film और Robert D. Ballard. Alien Deep. Universal City, Calif.: [Distributed by] Gaiam/Vivendi Entertainment, 2012.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNational Geographic Television & Film और Robert D. Ballard. Alien Deep. [Distributed by] Gaiam/Vivendi Entertainment, 2012.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.