00905nam0-22003251i-450-99000101191040332120150710170059.00-19-851943-5000101191FED01000101191(Aleph)000101191FED0100010119120001205d1975----km-y0itay50------baengGBa---a---001yyQuantum gravity<<an >>Oxford symposiumedited by C.J. Isham, R. Penrose and D.W. SciamaOxfordClarendon Press1975605 p.ill.24 cmRelativitàGravitàIsham,Chris J.46426Penrose,Roger<1931- >Sciama,Dennis William<1928- >ITUNINARICAUNIMARCBK99000101191040332123-08710056FI1FI1UNINA