Program: HathiTrust Digital Library

  • Publisher: U.S. Dept. of the Interior, Geological Survey ; National Technical Information Service, distributor
  • Print ISSN: 0364-4375
  • Electronic ISSN:
  • OCLC Number: 1688857
  • Validation: None
  • Retention: permanent
  • Institution: HathiTrust
  • Facility:
  • OCLC Symbol: HATHI
  • Holdings Format: Print
Materials Archive Action Date of Action Program Status/Note
1964/1965 pt. 1; 1964/1965 pt.2; 1965/66 PT.1; 1964-67; 1966/67 PT.1; 1965/1966-1967/1968; 1967/68 PT.1; 1968-69; 1968/69 PT.1; 1969/70 PT.1; 1969/70 PT.2; 1970; 1968/1969-1970/1971; 1970/71 PT.1; 1970/71 PT.2; 1971; 1971/72 PT.1; 1972; 1972/73 pt.1-2; 1972/73 PT.1; 1972/73 PT.2; 1973; 1971/1972-1973/1974; 1973/74 PT.2; 1974-1974/1975; 1974/75 PT.2; 1975-1980
committed to retain 2018-11-10 HTDL