Program: HathiTrust Digital Library

  • Publisher: U.S. Dept. of the Interior, Geological Survey ;
  • Print ISSN:
  • Electronic ISSN:
  • OCLC Number: 2723875
  • Validation: None
  • Retention: permanent
  • Institution: HathiTrust
  • Facility:
  • OCLC Symbol: HATHI
  • Holdings Format: Print
Materials Archive Action Date of Action Program Status/Note
1975-1979
committed to retain 2012-09-04 HTDL