00970nam a2200289 i 450099100091300970753620020507175732.0950714s1971 us ||| | eng 0121791505b10774853-39ule_instLE01304220ExLDip.to Matematicaeng512.4AMS 16-XXCohn, Paul Moritz45807Free rings and their relations /P. M. CohnLondon :Academic Press,1971xvi, 346 p. ;24 cm.L.M.S. Monographs ;2Bibliography: p. 327-339Associative rings.b1077485323-02-1728-06-02991000913009707536LE013 16-XX COH11 (1971)12013000031941le013-E0.00-l- 01310.i1087364828-06-02Free rings and their relations79698UNISALENTOle01301-01-95ma -engus 01