National Union of Shale Miners and Oil Workers, Fachbücher

National Union of Blastfurnacemen, Ore Miners, Fachbücher

National Union of Government and Federated Workers, Fachbücher

National Union of Agricultural and Allied Workers, Fachbücher

National Union of Hosiery and Knitwear Workers, Fachbücher

National Workers' Union of Afghanistan, Fachbücher

National Union of General Workers, Fachbücher

National Union of Public Workers, Fachbücher

National Union of Angolan Workers, Fachbücher

National Workers' Union, Fachbücher

National Union of the Unions of the Workers of Benin, Fachbücher

National Union of Workers (Sri Lanka), Fachbücher

National Union of Workers of Guinea-Bissau, Fachbücher

National Workers' Union (Saint Lucia), Fachbücher

National Social Security Workers Union, Fachbücher

Water conversion of oil shales and biomass, Fachbücher