APA

Dan-Maniu D., World Petroleum Congress (17th. : 2002 sept. 1-5 : Río de Janeiro B., .The restructuring of the natural gases exploitation activities in Romania, in the prospect of its integration in the European Union. : .

Chicago

Dan-Maniu Duse, World Petroleum Congress (17th. : 2002 sept. 1-5 : Río de Janeiro Brasil), .The restructuring of the natural gases exploitation activities in Romania, in the prospect of its integration in the European Union. : .

Harvard

Dan-Maniu D., World Petroleum Congress (17th. : 2002 sept. 1-5 : Río de Janeiro B., .The restructuring of the natural gases exploitation activities in Romania, in the prospect of its integration in the European Union. : .

MLA

Dan-Maniu Duse, World Petroleum Congress (17th. : 2002 sept. 1-5 : Río de Janeiro Brasil), .: . .