00346cam a22000977a 4500008004000000082001300040245009500053260003500148300001300183700005200196180718b1972   xxu||||| |||| 00| 0 eng d  aQ86 Un3p  aPolicy approach to planning in social defencecby Department of Economic nd Social Affairs  aNew YorkbUnited Nationsc1972  aiv,306p.  aU.S.A. Department of Economic nd Social Affairs