| GeoRef (Ebsco) Citations for U.S. and international journals, conference proceedings, books, reports, theses, and maps in Geology and the Earth Sciences. Includes GeoRef in Process content. Coverage: North American geology from 1785-; international geology from 1933- Note: Mobile interface |
| Publications of the U.S. Geological Survey (U.S. Geological Survey) A catalog of USGS Publications (current and historic maps, aerial photos, satellite images, datasets, reports) and other products (screensavers, earth science image sets for teaching) available for purchase or for free download. see also How to obtain publications of the USGS and USGS publications warehouse. Note: Unrestricted access |