Hanson, M. E. The future of transportation energy use in the Philippines. Philippine Engineering Journal.
Citazione stile Chigago Style (17a edizione)Hanson, Mark E. "The Future of Transportation Energy Use in the Philippines." Philippine Engineering Journal .
Citatione MLA (9a ed.)Hanson, Mark E. "The Future of Transportation Energy Use in the Philippines." Philippine Engineering Journal, .
Attenzione: Queste citazioni potrebbero non essere precise al 100%.