APA

Berger E., World Petroleum Congress (10th : 1979 sept. 9-14 : Bucharest), .Treatment and liquefaction of natural gas in landbased and offshore facilities. : .

Chicago

Berger Eginhard, World Petroleum Congress (10th : 1979 sept. 9-14 : Bucharest), .Treatment and liquefaction of natural gas in landbased and offshore facilities. : .

Harvard

Berger E., World Petroleum Congress (10th : 1979 sept. 9-14 : Bucharest), .Treatment and liquefaction of natural gas in landbased and offshore facilities. : .

MLA

Berger Eginhard, World Petroleum Congress (10th : 1979 sept. 9-14 : Bucharest), .: . .