APA

Villela T., Silva J., Cavalcanti E., World Petroleum Congress (17th. : 2002 sept. 1-5 : Río de Janeiro B., Silva J. & Cavalcanti E.Chemical and psysical analysis of natural gas pipelines corrosion products (black powder). : .

Chicago

Villela T.S, Silva J.M, Cavalcanti E.H.S, World Petroleum Congress (17th. : 2002 sept. 1-5 : Río de Janeiro Brasil), Silva J.M and Cavalcanti E.H.S.Chemical and psysical analysis of natural gas pipelines corrosion products (black powder). : .

Harvard

Villela T., Silva J., Cavalcanti E., World Petroleum Congress (17th. : 2002 sept. 1-5 : Río de Janeiro B., Silva J. and Cavalcanti E.Chemical and psysical analysis of natural gas pipelines corrosion products (black powder). : .

MLA

Villela T.S, Silva J.M, Cavalcanti E.H.S, World Petroleum Congress (17th. : 2002 sept. 1-5 : Río de Janeiro Brasil), Silva J.M and Cavalcanti E.H.S.: . .