00770cam a2200217 i 450000500170000000800410001701000060005802000160006404000250008008200230010511100850012824500300021325000120024326000910025530000340034650400290038065000350040965000350044471000200047971000530049920181210011534.0791220s1980    enka     b    100 0 eng    a   a0080256783   aDLCcDLCd  BD-DhBPA  a662.6622bSYO 19802 aSymposium on the Gasification and Liquefaction of Coald1979 :cKatowice, Poland10aOils and gases from coal.  a1st ed.  aOxford, Eng. ;aNew York :bPublished for the United Nations by Pergamon Press,c1980.  avii, 305 p. :bill. ;c26 cm.  aIncludes bibliographies. 0aCoal liquefactionxCongresses. 0aCoal gasificationxCongresses.2 aUnited Nations.2 aUnited Nations.bEconomic Commission for Europe.