Bull-Berg, H. J. (1984). Restoring the oil-smeared eagle: The U.S. oil regime strategy, 1973-1983. Fridtjof Nansen Institute at Polhøgda.
Dyfyniad Arddull ChicagoBull-Berg, Hans Jacob. Restoring the Oil-smeared Eagle: The U.S. Oil Regime Strategy, 1973-1983. Lysaker, Norway: Fridtjof Nansen Institute at Polhøgda, 1984.
Dyfyniad MLABull-Berg, Hans Jacob. Restoring the Oil-smeared Eagle: The U.S. Oil Regime Strategy, 1973-1983. Fridtjof Nansen Institute at Polhøgda, 1984.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.