Walsh, M., & Shah, J. J. (1997). Clean fuels for Asia: Technical options for moving toward unleaded gasoline and low-sulfur diesel. World Bank.
Dyfyniad Arddull ChicagoWalsh, Michael, and Jitendra J. Shah. Clean Fuels for Asia: Technical Options for Moving Toward Unleaded Gasoline and Low-sulfur Diesel. Washington, D.C.: World Bank, 1997.
Dyfyniad MLAWalsh, Michael, and Jitendra J. Shah. Clean Fuels for Asia: Technical Options for Moving Toward Unleaded Gasoline and Low-sulfur Diesel. World Bank, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.