Editura
U.C.F.S.
U.M.F.
U.S. Census Bureau
U.S. Departament of State. Bureau of Educational and Cultural Affairs
U.S. Government Printing Office
U.S. Information Agency
Ucepedghiz
UCET-The Universities Council for the Education of Teachers
Uchpediz
Ucipedghis
Ucipedghiz
Udgivet af Servicekontoret for Turisterhvervet
UER Press
UFAP (Union Française d 'Annuaires Professionnels)
Ufficio delle pubblicazioni ufficiali delle Comunità europee
Ufficio Propaganda Edizioni Milanesi
Ufficio Turistico Locale
Uhpedgiz
Uitgave Cultura
Uitgeverij de Nederlandsche Boekhandel
Ukrainischer Verlag
Ukrainskoi Sovetskoi Ențiklopedii
Ulf Prytz
Ullstein Verlag
Ulpia Traiana
Ulrico Hoepli
Ulstein
Ultra Tech
Ultramar Editores
Umanitatea
Umberto Art
Umbria
UNAIDS(United Nations Programme on HIV/AIDS)
Unarte
UNATC Press
Uncut DVD Co. Ltd
Unesco
UNHOP
Unicart
UNICEF(United Nations Children 's Fund)
UNICEF. Division of Communication
UNIDO(United Nations Industrial Development Organization)
Unión Cineastas de la U.R.S.S.
Union des fondations culturelles royales
Union Deutsche Verlagsgesellschaft Roth & Co.
Union Deutsche Verlagsgesellscraft
Unión Europea
Union européenne
Union Fenosa
Union Générale d 'Éditions
Union Latine d'Éditions
Union of Soviet film workers
Unione europea
Unione Tipografico-Editrice Torinese
Uniprint
Unique Publications Ltd
Unirea Alba Iulia
Unirea Braşov
Unirea Bucureşti
Unirea Iaşi