International Natural Gas Conversion Symposium Kruger National Park, South Africa, & De Pontes, M. (1997). Natural gas conversion IV: Proceedings of the 4th International Natural Gas Conversion Symposium, Kruger Park, South Africa, November 19-23, 1995. Elsevier.
Cita Chicago Style (17a ed.)International Natural Gas Conversion Symposium Kruger National Park, South Africa, y M. De Pontes. Natural Gas Conversion IV: Proceedings of the 4th International Natural Gas Conversion Symposium, Kruger Park, South Africa, November 19-23, 1995. Amsterdam ; New York: Elsevier, 1997.
Cita MLA (8a ed.)International Natural Gas Conversion Symposium Kruger National Park, South Africa, y M. De Pontes. Natural Gas Conversion IV: Proceedings of the 4th International Natural Gas Conversion Symposium, Kruger Park, South Africa, November 19-23, 1995. Elsevier, 1997.