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Reprezentanţa Comisiei Europene în România: http://www.ec.europa.eu/romania/index_ro.htm
Tratatele Uniunii Europene: http://www.eur-lex.europa.eu/en/treaties/index.htm
http://www.europa.eu/abc/treaties/index_en.htm
Tratatul de la Bruxelles – 17 martie 1948 ( Brussels Treaty – 17 March 1948 ) : http://www.ena.lu/brussels_treaty_17_march_1948-020302282.html
Tratatul de la Paris – 18 aprilie 1951 ( Paris Treaty - 18 April 1951 )
- ECSC Treaty : The Treaty establishing the European Coal and Steel Community (ECSC)
http://www.europa.eu/legislation_summaries/institutional_affairs/treaties/treaties_ecsc_en.htm
Textul modificat al Tratatului de la Bruxelles ( Text of the Modified Brussels Treaty – 23 October 1954 ):
Tratatele de la Roma – 25 martie 1957 ( Treaties of Rome - 25 March 1957 ):
- EEC Treaty: European Economic Community (EEC ) http://www.europa.eu/legislation_summaries/institutional_affairs/treaties/treaties_eec_en.htm
- Euratom Treaty: European Atomic Energy Community (Euratom) http://www.europa.eu/legislation_summaries/institutional_affairs/treaties/treaties_euratom_en.htm
Actul Unic European – 17 februarie 1986 ( The Single European Act (SEA) - 17 February 1986 )
http://www.europa.eu/legislation_summaries/institutional_affairs/treaties/treaties_singleact_en.htm
Tratatul de la Maastricht – 7 februarie 1992 ( Maastricht Treaty - 7 February 1992 ) :
http://www.eur-lex.europa.eu/en/treaties/dat/11992M/htm/11992M.html
http://www.europa.eu/legislation_summaries/economic_and_monetary_affairs/institutional_and_economic_framework/treaties_maastricht_en.htm
http://www.eur-lex.europa.eu/en/treaties/dat/11997D/htm/11997D.html
http://www.europa.eu/legislation_summaries/institutional_affairs/treaties/amsterdam_treaty/index_en.htm
Tratatul de la Nisa – 26 februarie 2001 ( Nice Treaty - 26 February 2001 )
http://www.eur-lex.europa.eu/en/treaties/dat/12001C/htm/12001C.html
http://www.europa.eu/lisbon_treaty/index_en.htm
http://www.eur-lex.europa.eu/JOHtml.do?uri=OJ:C:2007:306:SOM:EN:HTML