00693nam0-22002531i-450-990002738950403321000273895FED01000273895(Aleph)000273895FED0100027389520000920d1961----km-y0itay50------baENGPlanning theory.by Le Breton PP. and H enning D.A.Englewood CliffsPrentice Hall1961Le Breton,Preston P.286492Henning,Dale AnsgarITUNINARICAUNIMARCBK99000273895040332114-1-14s.i.ECAECAPlanning theory424195UNINAING01