Dyfyniad APA
ebrary, Inc. (1992). Automotive fuel economy: How far should we go? National Academy Press.
Dyfyniad Arddull Chicago
ebrary, Inc. Automotive Fuel Economy: How Far Should We Go? Washington: National Academy Press, 1992.
Dyfyniad MLA
ebrary, Inc. Automotive Fuel Economy: How Far Should We Go? National Academy Press, 1992.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.