APA

Buchold H., Dropsch H., World Petroleum Congress (17th. : 2002 sept. 1-5 : Río de Janeiro B. & Dropsch H.Lurgi eurofuel. : .

Chicago

Buchold Henning, Dropsch Holger, World Petroleum Congress (17th. : 2002 sept. 1-5 : Río de Janeiro Brasil) and Dropsch Holger.Lurgi eurofuel. : .

Harvard

Buchold H., Dropsch H., World Petroleum Congress (17th. : 2002 sept. 1-5 : Río de Janeiro B. and Dropsch H.Lurgi eurofuel. : .

MLA

Buchold Henning, Dropsch Holger, World Petroleum Congress (17th. : 2002 sept. 1-5 : Río de Janeiro Brasil) and Dropsch Holger.: . .