APA-ийн эшлэл(7 дахь хэвлэлт)
National Research Council (U.S.). Committee on Research Priorities in Geography at the U.S. Geological Survey & ebrary, Inc. (2002). Research opportunities in geography at the U.S. Geological Survey. National Academies Press.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
National Research Council (U.S.). Committee on Research Priorities in Geography at the U.S. Geological Survey ба Inc ebrary. Research Opportunities in Geography at the U.S. Geological Survey. Washington, D.C.: National Academies Press, 2002.
MLA -ийн эшлэл (9 дэх хэвлэлт)
National Research Council (U.S.). Committee on Research Priorities in Geography at the U.S. Geological Survey ба Inc ebrary. Research Opportunities in Geography at the U.S. Geological Survey. National Academies Press, 2002.
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