00732nam0-22002891i-450-9900030248604033210-471-36898-9000302486FED01000302486(Aleph)000302486FED0100030248620000920d1975----km-y0itay50------baitaITCausal AnalysisDavid R. Heise.New YorkJohn Wiley & Sons\c\\1975.XIII, 301 p.23 cm11300Heise,David R.ITUNINARICAUNIMARCBK99000302486040332111300 HEI12298SESSESCausal Analysis467036UNINAING01