00668nam a22001697a 4500999001900000020001800019082001500037100002300052245009500075260003200170300001000202650004600212650003100258650002100289650004400310952014400354  c514166d514166  a9781788160742  aI5372 R143  aRid, Thomas918534  aActive measures: the secret history of disinformation and political warfarecby Thomas Rid  aLondonbProfile Booksc2020  a513p.  aDisinformation - Government policy918535  aInformation warfare918536  aDemocracy918537  aSocial media - Political aspects918538  00102ddc406I_5372_000000000000000_R14370aIIPAbIIPAcDISPLAYd2020-10-12l1oI5372 R143p88447r2021-04-12s2020-11-05w2020-10-12yBK