Mining statistics.
Wedi'i Gadw mewn:
| OCLC: | 40372589 |
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| Awdur Corfforaethol: | |
| Iaith: | English |
| Cyhoeddwyd: |
[Perth]
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| Pynciau: | |
| Fformat: | Cyfresol Note that CRL will digitize material from the collection when copyright allows. |
| Disgrifiad Corfforoll: | v. tables (part fold.) diagrs., fold. charts. 34 cm. |
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