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Author  |
Title | Year | Publication | Volume | Pages |
|---|---|---|---|---|---|
| Godard, R.R. | Mine Water Treatment – Frick-district | 1970 | Min. Congr. J. | 56 | 36-& |
| Lovell, H.L. | Limestone Treatment Of Coal Mine Drainage | 1971 | Min. Congr. J. | 57 | 28-& |
| Lovell, H.L. | Mine Water Treatment Control | 1971 | Min. Congr. J. | 57 | 83-& |