APA

Ben-Omran A., Nasr M., Sassi M., Hmeda N. B., World Energy Congress (18th. : 2001 oct. 21-25 : Buenos Aires), Nasr M., Sassi M. & Hmeda N. B.The economic dimensions of african energy resources. : .

Chicago

Ben-Omran A, Nasr M, Sassi M, Hmeda N Ben, World Energy Congress (18th. : 2001 oct. 21-25 : Buenos Aires), Nasr M, Sassi M and Hmeda N Ben.The economic dimensions of african energy resources. : .

Harvard

Ben-Omran A., Nasr M., Sassi M., Hmeda N. B., World Energy Congress (18th. : 2001 oct. 21-25 : Buenos Aires), Nasr M., Sassi M. and Hmeda N. B.The economic dimensions of african energy resources. : .

MLA

Ben-Omran A, Nasr M, Sassi M, Hmeda N Ben, World Energy Congress (18th. : 2001 oct. 21-25 : Buenos Aires), Nasr M, Sassi M and Hmeda N Ben.: . .