White, M. (2016). Complete national parks of the United States: Featuring 400+ parks, monuments, battlefields, historic sites, scenic trails, recreation areas, and seashores (Updated second edition.). National Geographic Soc.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWhite, Mel. Complete National Parks of the United States: Featuring 400+ Parks, Monuments, Battlefields, Historic Sites, Scenic Trails, Recreation Areas, and Seashores. Updated second edition. Washington, D.C. :: National Geographic Soc, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWhite, Mel. Complete National Parks of the United States: Featuring 400+ Parks, Monuments, Battlefields, Historic Sites, Scenic Trails, Recreation Areas, and Seashores. Updated second edition. National Geographic Soc, 2016.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.