00366nam a2200133Ia 4500082000900000100005000009245005700059260000900116300001300125490002800138500000500166700003200171700002900203  aSFb  aAlper, P. d Armitage, P. H. and Smith, C. S.  aEducational models, manpower, planning and controlb  c1967  a93-103p.  aReprint series v no.17  a  aArmitage, P. H. ; jt. auth.  aSmith, C. S. ; jt. auth.