Florentine Films, WETA-TV (Television station : Washington, D.C.), Public Broadcasting Service (U.S.), PBS Home Video, National Parks Film Project, LLC, Burns, K., . . . Roosevelt, T. (2009). The national parks: America's best idea (Widescreen ed.). PBS Home Video ; Distributed by Paramount Home Entertainment.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFlorentine Films, et al. The National Parks: America's Best Idea. Widescreen ed. [United States] : Hollywood, Calif.: PBS Home Video ; Distributed by Paramount Home Entertainment, 2009.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFlorentine Films, et al. The National Parks: America's Best Idea. Widescreen ed. PBS Home Video ; Distributed by Paramount Home Entertainment, 2009.
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