00531pab a2200157 454500008004000000100001700040245011400057260000900171300001200180362000800192650001800200773002000218909001100238999001900249952010500268180718b2018   xxu||||| |||| 00| 0 eng d  aJohn, Peter   aTheories of policy change and variation reconsidered: a prospectus for the political economy of public policy  c2018  ap.1-16.  aMar  aPublic policy  aPolicy Sciences  a117051  c117045d117045  00104070aIIPAbIIPAd2018-07-19hVolume no: 51, Issue no: 1pAR117511r2018-07-19w2018-07-19yAR