00757nam0-22002891i-450-990001024330403321000102433FED01000102433(Aleph)000102433FED0100010243320000920d1969----km-y0itay50------baengHow to use GroupsJ.W. Leech and D.J. NewmanLondonMethuen1969Teoria dei gruppiPrincipi di simmetria512Leech,John Watson57058Newman,Donald J.ITUNINARICAUNIMARCBK99000102433040332110A-0986660FI1FI1How to Use Groups118536UNINAING01