Oil economists' handbook/
Bibliography: p. 173.
| Prif Awdur: | |
|---|---|
| Fformat: | |
| Cyhoeddwyd: |
London : Applied Science Publishers,
1977
|
| Pynciau: |
Bibliography: p. 173.
| Prif Awdur: | |
|---|---|
| Fformat: | |
| Cyhoeddwyd: |
London : Applied Science Publishers,
1977
|
| Pynciau: |