Program: HathiTrust Digital Library

  • Publisher: U.S. Dept. of the Interior, Geological Survey ; National Technical Information Service, distributor
  • Print ISSN: 0364-4073
  • Electronic ISSN:
  • OCLC Number: 1163030
  • Validation: None
  • Retention: permanent
  • Institution: HathiTrust
  • Facility:
  • OCLC Symbol: HATHI
  • Holdings Format: Print
Materials Archive Action Date of Action Program Status/Note
1964/65 PT.1; 1964/65 PT.2; 1965; 1965/66 PT.1; 1965-66 pt.1; 1965/66 PT.2; 1966; 1966/67 PT.1; 1966/67 PT.2; 1967; 1967/68 PT.1; 1967-68 pt.1; 1967/68 PT.2; 1968; 1968/69 PT.1; 1968/69 PT.2; 1969; 1969/70 PT.1; 1969/70 PT.2; 1970; 1970/71 PT.2; 1971; 1971/72 PT.1; 1971/72 PT.2; 1972; 1972/73 PT.1; 1972/73 PT.2; 1973; 1973 pt.2; 1973/74 PT.1; 1973/74 PT.2; 1974-1979; 1980 pt.1; 1980 pt.2
committed to retain 2018-10-13 HTDL