TY  - GEN
T1  - OPEC bulletin.
LA  - English
UL  - https://tuklas.up.edu.ph/Record/UP-99796217611460321
KW  - Organization of Petroleum Exporting Countries -- Periodicals.
KW  - Petroleum industry and trade -- Periodicals.
KW  - Organization of Petroleum Exporting Countries.
ER  -