00729nam0-22002891i-450-990001059540403321000105954FED01000105954(Aleph)000105954FED0100010595420000920d1949----km-y0itay50------baengOpticsby Francis Weston SearsCambridge [Mass.]Addison-Wesley1949OtticaOttica elettronica535537.56Sears,Francis Weston28068ITUNINARICAUNIMARCBK99000105954040332127-001.003576FI1FI1Optics340428UNINAING01