00893nam0-22003011i-450-990003134670403321000313467FED01000313467(Aleph)000313467FED0100031346720000920d1962----km-y0itay50------baENGITModern theories of developmentan introduction to theoretical biologyL. von Bertalanffy.New YorkHarper1962.xiv, 204 p.Harper torchbooks554[Trad. di : Kritische Theorie der Formbildung, c1933]Bertalanffy,Ludwig : vonWoodger,Joseph HenryITUNINARICAUNIMARCBK990003134670403321F/3.2 BER/62035856SESSESModern theories of development456926UNINAING01