Cita APA (7a ed.)

National Petroleum Council. (2000). Assuring the Adequacy and Affordability of Cleaner Fuels. National Petroleum Council.

Cita Chicago Style (17a ed.)

National Petroleum Council. Assuring the Adequacy and Affordability of Cleaner Fuels. Estados Unidos: National Petroleum Council, 2000.

Cita MLA (8a ed.)

National Petroleum Council. Assuring the Adequacy and Affordability of Cleaner Fuels. National Petroleum Council, 2000.