Walker, William, 1946- Fissile material stocks : characteristics, measures and policy options / William Walker and Frans Berkhout. - New York : United Nations, 1999. - x, 60 p. : ill. ; 21 cm. "UNIDIR/99/8." United Nations publication sales no. GV.E.99.0.15." Includes bibliographical references. ISBN: 9290451319 LCCN: 99515801 Subjects--Topical Terms: Radioactive substances--Storage.Plutonium.Uranium.Reactor fuel reprocessing--Security measures.Nuclear nonproliferation. Dewey Class. No.: 621.4835 / WAL.N9