Observations of environmental change in Grand Canyon, Arizona
(Government Documents Online)
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Virtual Library - Government Documents - Digital Library | ONLINE | Not For Loan |
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Citations
Webb, R. H., Melis, T. S., & Valdez, R. A. (2002). Observations of environmental change in Grand Canyon, Arizona . U.S. Geological Survey ; Denver, CO :.
Chicago / Turabian - Author Date Citation, 17th Edition (style guide)Webb, Robert H, Theodore S. Melis and Richard A. Valdez. 2002. Observations of Environmental Change in Grand Canyon, Arizona. U.S. Geological Survey ; Denver, CO.
Chicago / Turabian - Humanities (Notes and Bibliography) Citation, 17th Edition (style guide)Webb, Robert H, Theodore S. Melis and Richard A. Valdez. Observations of Environmental Change in Grand Canyon, Arizona U.S. Geological Survey ; Denver, CO, 2002.
MLA Citation, 9th Edition (style guide)Webb, Robert H., Theodore S Melis, and Richard A Valdez. Observations of Environmental Change in Grand Canyon, Arizona U.S. Geological Survey ; Denver, CO :, 2002.