00763nam0-22002891i-450-990002850930403321000285093FED01000285093(Aleph)000285093FED0100028509320000920d1989----km-y0itay50------baENGOrganizational EcologyMichael T.Hannan, John Freeman.-CambridgeHarvard University Press1989IIX365Hannan,Michael T.77630Freeman,JohnITUNINARICAUNIMARCBK9900028509304033211-7-563-TI4547 DEAECAECAOrganizational Ecology418557UNINAING01