APA

Cigre C., World Energy Congress (18th. : 2001 oct. 21-25 : Buenos Aires), .New efficiency and environmental challenges for the power supply industry. : .

Chicago

Cigre C, World Energy Congress (18th. : 2001 oct. 21-25 : Buenos Aires), .New efficiency and environmental challenges for the power supply industry. : .

Harvard

Cigre C., World Energy Congress (18th. : 2001 oct. 21-25 : Buenos Aires), .New efficiency and environmental challenges for the power supply industry. : .

MLA

Cigre C, World Energy Congress (18th. : 2001 oct. 21-25 : Buenos Aires), .: . .