00864nam0-22003251i-450-9900014397804033210-7145-2970-2000143978FED01000143978(Aleph)000143978FED0100014397820000920d1993----km-y0itay50------baengBefore the beginningCosmology explainedGeorge F.R. EllisLondon [etc.]BoyarsBowerdeanc1993152 p.22 cmBriefingsAstronomiaAstrofisicaCosmologia52023Ellis,George F.R.45649ITUNINARICAUNIMARCBK99000143978040332119-363D.S.F. 6467FI1FI1Before the beginning374424UNINAING01