APA

International Gas Union I., World Gas Conference (24th. : 2009 oct 5-9 : Buenos Aires A., . (2009). 24th World Gas Conference. Buenos Aires: International Gas Union, IGU.

Chicago

International Gas Union IGU, World Gas Conference (24th. : 2009 oct 5-9 : Buenos Aires Argentina), . 2009. 24th World Gas Conference. Buenos Aires: International Gas Union, IGU.

Harvard

International Gas Union I., World Gas Conference (24th. : 2009 oct 5-9 : Buenos Aires A., . (2009). 24th World Gas Conference. Buenos Aires: International Gas Union, IGU.

MLA

International Gas Union IGU, World Gas Conference (24th. : 2009 oct 5-9 : Buenos Aires Argentina), . 24th World Gas Conference. Buenos Aires: International Gas Union, IGU. 2009.