Lankford, A. (2006). Haunted hikes: Spine-tingling tales and trails from north america's national parks.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLankford, Andrea. Haunted Hikes: Spine-tingling Tales and Trails from North America's National Parks. 2006.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLankford, Andrea. Haunted Hikes: Spine-tingling Tales and Trails from North America's National Parks. 2006.
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