00930nam0-22003491i-450-9900031953804033210-394-31256-2000319538FED01000319538(Aleph)000319538FED0100031953820000920d1977----km-y0itay50------baitaITSocial Research MethodsPerspective, Theory, and AnalysisKenneth W. Eckhardt and M. David Ermann.New YorkRandom House\c\\1977.XX, 410 p.24 cm1113011220112301132011360Eckhardt,Kenneth W.Ermann,M. DavidITUNINARICAUNIMARCBK99000319538040332111130 ECK12314/ISESSESSocial Research Methods453278UNINAING01