APA

Cooper B. H., Knudsen K. G., World Petroleum Congress (17th. : 2002 sept. 1-5 : Río de Janeiro B. & Knudsen K. G.Production of ULSD. : .

Chicago

Cooper Barry H, Knudsen Kim G, World Petroleum Congress (17th. : 2002 sept. 1-5 : Río de Janeiro Brasil) and Knudsen Kim G.Production of ULSD. : .

Harvard

Cooper B. H., Knudsen K. G., World Petroleum Congress (17th. : 2002 sept. 1-5 : Río de Janeiro B. and Knudsen K. G.Production of ULSD. : .

MLA

Cooper Barry H, Knudsen Kim G, World Petroleum Congress (17th. : 2002 sept. 1-5 : Río de Janeiro Brasil) and Knudsen Kim G.: . .