APA

Koehler E. O., World Petroleum Congress (17th. : 2002 sept. 1-5 : Río de Janeiro B., .Zeolite catalysts reduce the aromatics surplus in refinery and petrochemical streams. : .

Chicago

Koehler Ernst O, World Petroleum Congress (17th. : 2002 sept. 1-5 : Río de Janeiro Brasil), .Zeolite catalysts reduce the aromatics surplus in refinery and petrochemical streams. : .

Harvard

Koehler E. O., World Petroleum Congress (17th. : 2002 sept. 1-5 : Río de Janeiro B., .Zeolite catalysts reduce the aromatics surplus in refinery and petrochemical streams. : .

MLA

Koehler Ernst O, World Petroleum Congress (17th. : 2002 sept. 1-5 : Río de Janeiro Brasil), .: . .