Program: HathiTrust Digital Library

  • Publisher: U.S. Dept. of the Interior, Geological Survey ; National Information Service, distributor
  • Print ISSN: 0742-1575
  • Electronic ISSN:
  • OCLC Number: 9564843
  • Validation: None
  • Retention: permanent
  • Institution: HathiTrust
  • Facility:
  • OCLC Symbol: HATHI
  • Holdings Format: Print
Materials Archive Action Date of Action Program Status/Note
1981 v.1; 1981:v.1*; 1981 v.2; 1981:v.2*; 1981 v.3; 1981:v.3*; 1982 v.1; 1982 v.2; 1982:v.2*; 1982 v.3; 1982:v.3*; 1983 v.1; 1983:v.1*; 1983 v.2-3; 1983:v.3*; 1984 v.1; 1984:v.1*; 1984 v.2; 1984:v.2*; 1984:v.3*; 1985 v.1; 1985:v.1*; 1985 v.2; 1985:v.2*; 1985:v.3*; 1986 v.1; 1986 v.2-3; 1986:v.2*; 1986:v.3*; 1987 v.1-2; 1987 v.3; 1988 v.1-2; 1988:v.1*; 1988:v.2*; 1988 v.3; 1988:v.3*; 1989 v.1; 1989 v.2; 1989 v.3; 1990 v.1; 1990 v.2; 1990 v.3; 1991:v.1*; 1991:v.2*; 1991:v.3*; 1991:v.4*; 1993:v.1; 1993:v.2; 1993:v.3; 1994:v.4; 1981:index*
committed to retain 2019-01-08 HTDL