Directory of Illinois sand and gravel producers.
| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
Urbana :
Illinois State Geological Survey,
1967.
|
| Series: | Mineral economics brief ;
18. |
| Subjects: |
| Item Description: | "Replaces the Directory published in April 1963 as Mineral resources brief 6, which is now out of print." |
|---|---|
| Physical Description: | 28 . ; 28 cm. |