00460cam a22001217a 4500008004000000020001800040100001600058245011900074260003000193300001000223999001900233952008600252180718b2017   xxu||||| |||| 00| 0 eng d  a9781138776838  aJohn, Peter  aField experiments in political science and public policy : practical lessons in design and deliverycby Peter John  aNew YorkbRoutledgec2017  a207p.  c446104d446104  00104070aIIPAbIIPAd2018-02-08oB084 J613fp87429r2018-07-21w2018-07-21yBK