(1976). Current Research in Petroleum Fuels.
Dyfyniad Arddull ChicagoCurrent Research in Petroleum Fuels. New York, 1976.
Dyfyniad MLACurrent Research in Petroleum Fuels. 1976.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.
(1976). Current Research in Petroleum Fuels.
Dyfyniad Arddull ChicagoCurrent Research in Petroleum Fuels. New York, 1976.
Dyfyniad MLACurrent Research in Petroleum Fuels. 1976.