Universal decimal classification. 622, Mining.
Wedi'i Gadw mewn:
| Awdur Corfforaethol: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
London :
British Standards Institution,
1979..
|
| Rhifyn: | 2nd English full ed. |
| Cyfres: | FID publication ;
no. 483. British standard 1979 ; 1000 [622]: |
| Pynciau: |
| Disgrifiad o'r Eitem: | Pierced for binder. |
|---|---|
| Disgrifiad Corfforoll: | 48 p. ; 30 cm. |
| ISBN: | 0580107566 |