Program: HathiTrust Digital Library

  • Publisher: Library Systems Branch, U.S. Environmental Protection Agency ; National Technical Information Service, distributor
  • Print ISSN: 0196-0091
  • Electronic ISSN:
  • OCLC Number: 3806538
  • Validation: None
  • Retention: permanent
  • Institution: HathiTrust
  • Facility:
  • OCLC Symbol: HATHI
  • Holdings Format: Print
Materials Archive Action Date of Action Program Status/Note
1985 Jan-Sep; 1985 Oct-Dec; 1987 Jan-Sep; 1987 Oct-Dec; 1988-1989; 1990:Oct.-Dec.; 1991 Jan-Sep; 1991 Oct-Dec; 1991; 1991:Jan.-Mar.; 1991:Apr.-June; 977-83/PT.1; 984-90/PT.1; 1991 no.1-3; 977-83/PT.2; 984-90/PT.2; 1991 no.4; 1992 Oct-Dec; 1992 (lacks July-Sept 1992); 1992 no.4; 1993; 1993:Apr.-June; 1993:Jan.-Mar.; 1993 no.1-4; 1994 Jan-Sep; 1994 Oct-Dec; 1994:Jan.-Mar.; 1994 no.1,3-4; 1995 Jan-Sep; 1995 Oct-Dec; 1995:Jan.-Mar.; 1995:Apr.-June; 1995 no.1-2; 1995 no.3-4; 1996 Jan-Mar; 1996 Jul-Sep; 1996 Oct-Dec; 1996 Apr-Jun; 1996 no.1-4; 1997 Jan-Mar; 1997 Apr-Jun; 1997 Oct-Dec; 1997; 1997 no.1-2,4; 1998 Jan-Mar; 1998 Apr-Jun; 1998 Jul-Sep; 1998 Oct-Dec; 1998; 1999 Jan-Mar; 1999 Apr-Jun; 1999 Jul-Sep; 1999 Oct-Dec; 1999 no.1-2,4; 2000 Jan-Mar; 2000 Apr-Jun; 2000; 2000:Oct.-Dec.; 991; 993; 995; 996; 998; 999; 992/Apr-Jun; 992/Jul-Sep; 992/Oct-Dec; 994/Jan-Mar; 994/Jul-Sep; 994/Oct-Dec; 997/Apr-Jun; 997/Oct-Dec; 997/Jan-Mar; index
committed to retain 2018-08-30 HTDL