Annual report - Viena: OPEC, 1978- - 98 páginas. ilustraciones. - Anual 09287 - 09308, 010051 - 010057 The world economy. Oil market developments. UN decade of sustainable energy for all launch boosts energy awareness. Importance of data transparence. Activities of the Secretariat... ISSN: 0474-6317 Subjects--Topical Terms: OPEC - Informe AnualOPEC - Informe de Gestión