Coal information - International Energy Agency; Organisation for Economic Co-operation and Development (Paris : OECD, 1984)
PTSL : 1983, 1984, 1985, 1986, 1987, 1988, 1989,1990, 1991, 1992, 1993, 1994, 1995,1996, 2000, 2001 (with 2000 data), 2003 (with 2002 data), 2004 (with 2003 data), 2005 (with data 2004), 2006 (with 2005 data),2006 (with data 2005), 2007 (with 2006 data), 2008 (with data 2007), 2009 (with 2008 data), 2010 (with 2009 data), 2011 (with 2010 data)
Keywords: Coal trade -- Statistics -- Periodicals