New publications of the U. S. Geological Survey / 
U.S Geological Survey 
 - U. S. Geological Survey, Resto, Va. :  Dept. of the Interior,  1990- 
 - v. ;  28 cm. 
<br/><br/> PTSL : ( list 1039-issued in Feb 95); (list 1018-issued in May 1993) ; ( lists 1083-1085 issued Oct.-Dec. 1998); (lists 1092-1094-issued July in Sept. 1999) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--United States--Surveys--Bibliography.