OPEC bulletin /
Wedi'i Gadw mewn:
| Awdur Corfforaethol: | |
|---|---|
| Fformat: | Cyfresol |
| Iaith: | Saesneg |
| Cyhoeddwyd: |
Vienna, Austria :
Organization of the Petroleum Exporting Countries.
|
| Pynciau: | |
| Tagiau: |
Ychwanegu Tag
Dim Tagiau, Byddwch y cyntaf i dagio'r cofnod hwn!
|
| Cyhoeddwyd: | Began with: Nov. 1966. |
|---|---|
| Disgrifiad Corfforoll: | vol. : ill. ; 25-30 cm Also issued online via OPEC Web site; current address as of 10/9/2007: http://www.opec.org/library/; current access available vial PURL. |
| Publication Frequency: | Ten no. a year, <2007-> |
| ISSN: | 0474-6279 |