01105nam a2200301 i 450099100066225970753620020507171930.0940927s1967 us ||| | eng b10739695-39ule_instLE01300340ExLDip.to Matematicaeng510AMS 08-XXAMS 08ALang, Serge1160Algebraic structures /Serge LangReading, MA :Addison-Wesley,c1967viii, 173 p. ;24 cmAddison-Wesley series in mathematicsAlgebraic structuresGeneral algebraic systems.b1073969524-01-1828-06-02991000662259707536LE013 08-XX LAN12 (1967)12013000009995le013-E0.00-l- 01010.i1083051028-06-02LE013 Fondo Moscatelli 08-XX LAN12 (1967)12013000295343le013gE30.00-l- 00000.i1583060324-01-18Algebraic structures381987UNISALENTOle01327-09-94ma -engus 01