00591nam a22001811 4500 1/15142 990723s1982 enk 1 eng d 0865311633 15635 DLC GR-PeUP 338.272 8 OP OPEC : twenty years and beyond / edited by Ragaei El Mallakh Boulder : Westview Press , 1982 xxiii, 270 p. : fig. ; 24 cm. Energy Oil. Petroleum industry and trade. Mallakh, Ragaei El, ed. INST UNIPILB MAIN 20040709 338.272 8 OP 00131660 00131660 LOAN 0 1