. . . . . . . "This circular describes sources of United States Geological Survey (USGS) information and lists, in tabular form, USGS products and their sources, and tells how to go about obtaining them. Includes information on reference collections, cartography and geography, geology, water resources, maps, geophysical data, etc."@en . . . . . . . "Guide to obtaining USGS information"@en . "Guide to obtaining USGS information" . . . . . . . . . "United States" . .