Guide leaflet.
- Publisher: Illinois State Geological Survey
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 6208446
- Subject: Geology Illinois.
- Subject code: QE
- Publication history: Began in 1946.
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | no.43-58(1950-1952); no.22-42(1948-1967); no.59-81(1953-1967); v.51-75(1953-1967); 1968:D-1969; 1970-1971; 1971-72; 1972-1973; 1973 - 74; 1974-77; 1975-1977; 1978-1979; 1982-1985; 1986-1988; 1989-1991; v.76-101(1949-1966); no.82-101(1949-1966) | permanent |