National Geographic Television & Film, Warner Home Video (Firm), Houghton, S., & Selleck, T. (2009). Kingdom of the blue whale. NGHT ; Distributed by Warner Home Video.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNational Geographic Television & Film, Warner Home Video (Firm), Sue Houghton, और Tom Selleck. Kingdom of the Blue Whale. [United States] : [ Burbank, CA]: NGHT ; Distributed by Warner Home Video, 2009.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNational Geographic Television & Film, et al. Kingdom of the Blue Whale. NGHT ; Distributed by Warner Home Video, 2009.
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