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Dyfyniad Arddull ChicagoKristensen, Hans M. The 520 Forgotten Bombs: How U.S. and British Nuclear Weapons in Europe Undermine the Non-Proliferation Treaty. Washington: Greenpeace, 1995.
Dyfyniad MLAKristensen, Hans M. The 520 Forgotten Bombs: How U.S. and British Nuclear Weapons in Europe Undermine the Non-Proliferation Treaty. Washington: Greenpeace, 1995.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.