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           Dror, Yehezkel
               Ventures in policy sciences concept and applications \ Yehezkel Dror - New York : American Elsevier Publishing, 1971.
               xi, 321p. - Policy science book series/ed by Yehezkel Dror .
                ISBN: 0-444-00106-9

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                Subjects: Policy sciences; Public administration-Government policy; Public administration-Decision making.