OPEC bulletin.

1967-73; v.9:20-26 (1978); v.9:27-39 (1978); v.9:40-50 (1978); v.10:1-12 (1979); v.10:39-50 (1979); v.11:1-13 (1980); v.11:14-21 1980; v.12:1-6 1981; v.12:7-12 1981-82; v.13:1-6 1982; v.13:7-11 1982-83; v.14:1-6 1983; v.14:7-11 1983-84; v.15:1-6 1984; v.15:7-10 1984-85; v.16:1-5 1985; v.16:6-10 1985-86; v.15 no.9-v.16 no.10 Nov 1984-Jan 1986; v.17:3-5 1986; v.17 Feb 1986-Jan 1987; v.17:6-10 1986-87; v.18:1-5 1987; v.18 Feb 1987-Jan 1988; v.18:6-10 1987-88; v.19 Feb -Dec 1988; v.19 (1988); v.19:1-5 1988; v.19:6-9 1988; v.20 1989; v.21 1990; v.22 1991; v.23 1992; v.24 (1993); v.25 (1994); v.26 (1995); v.27 (1996); v.27 no.1-5 1996; v.27 no.6-10 1996; v.28 (1997); v.28 no.1-6 1997; v.28 no.7-12 1997; v.29 (1998); v.29 no.1-6 1998; v.29 no.7-12 1998; v.30 (1999); v.30 no.1-6 1999; v.30 no.7-12 1999; v.31 no.1-6 Jan.-June; v.33 no.5-6 yr.2002 mo.MAY-JUNE; v.34 no.1 yr.2003 mo.JAN-FEB; v.35 (2004); 2005:11-12; v.36 (2005); 2006:11-12; 2006:5-6; 2006:1-2; v.37 (2006); 2007:4; 2007:3; 2007:1; 2007:5-6; v.38:1-5 (Jan-June 2007); v.38:6-9 (July-Dec 2007); v.39:1:5 (Jan-June 2008); v.39:6-9 (July-Dec 2008); 2007-2009 (Incompl.); v.40:1-6 (Jan-July 2009); v.40:7-9 (Aug-Dec 2009); v.41:1 (Jan/Feb 2010); 2010-2012 (Incompl.); v.41 no.2-5; v.41 no.9; v.42:2-9 (Mar-Nov 2011); v.42 no.1; v.42 no.3; v.42 no.6; v.42 no.7; v.42 no.8; v.42 no.9; v.43:1-4 (Dec 2011-May 2012); v.43:5-7 (June-Dec 2012); v.46 no.10; v.48 no.1-3; v.48 no.4-6; v.50 no.1-3