Resource Type
Partner
Collection
Serial/Series Title
60th Congress
168
Senate document (United States. Congress. Senate)
166
United States Geological Survey Reports
29
U.S. Geological Survey bulletin
22
Series A--Economic geology
18
Series B--Descriptive geology
15
National Bureau of Standards Reports
8
North American Fauna
8
Scientific papers (United States. National Bureau of Standards)
8
United States Fish and Wildlife Service Reports
8
29 More