Walsh, M., & Shah, J. J. (1997). Clean fuels for Asia: Technical options for moving toward unleaded gasoline and low-sulfur diesel. World Bank.
Cita Chicago (17th ed.)Walsh, Michael, i Jitendra J. Shah. Clean Fuels for Asia: Technical Options for Moving Toward Unleaded Gasoline and Low-sulfur Diesel. Washington, D.C.: World Bank, 1997.
Cita MLA (8th ed.)Walsh, Michael, i Jitendra J. Shah. Clean Fuels for Asia: Technical Options for Moving Toward Unleaded Gasoline and Low-sulfur Diesel. World Bank, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.