Earthwalk Press & Geological Survey (U.S.). (1994). Hiking map & guide, Grand Canyon National Park: Features: topographic map (1:48,000) Hermit Trail to Grandview Trail ... (Rev. 1989 ... 1994, new recycled paper edition.). Earthwalk Press.
Chicago Style (17th ed.) CitationEarthwalk Press and Geological Survey (U.S.). Hiking Map & Guide, Grand Canyon National Park: Features: Topographic Map (1:48,000) Hermit Trail to Grandview Trail ... Rev. 1989 ... 1994, new recycled paper edition. Eureka, CA: Earthwalk Press, 1994.
MLA (9th ed.) CitationEarthwalk Press and Geological Survey (U.S.). Hiking Map & Guide, Grand Canyon National Park: Features: Topographic Map (1:48,000) Hermit Trail to Grandview Trail ... Rev. 1989 ... 1994, new recycled paper edition. Earthwalk Press, 1994.