Program: HathiTrust Digital Library
- Publisher: Progress
- Print ISSN: 0206-149X
- Electronic ISSN: 1947-2641
- OCLC Number: 1799511
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
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no.1 1974; 1975; 1976-1977; 1978-1979; 1983-1985; 1987-1988; no.1-6 1989; 1989 no.4-6; 1990; no.1-3 1990; no.4-6 1990; 1991 no.1-3; 1991 no.4-6; 1992 no.2-3; no.2-3 1992; 1993; 1994 no.1-3; no.1-6 1994; 1994 no.4-6; 1995 no.1-3; 1995 no.4-6; 1996 no.1-3; 1996 no.4-6; 1997; 1997 no.1-3; 1997 no.4-6; 1998 no.1-3; 1998 no.4-6; 1999 no.1-3; 1999 no.4; 2000 no.1-3; 2000 no.4-6; 2001 no.1-2; 2001 no.4; 2003-2006
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committed to retain | 2017-06-10 | HTDL |
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