00548nam a2200181Ia 4500082001600000100001900016245005000035260004800085300002200133490005600155500000500211690000600216700000500222952009800227964001700325921000900342999001500351  a512bJ66.TT  aJohnson, D. L.  aTopics in the theory of group presentationsb  aCambridgebCambridge University Pressc1980  aviii, 311p. Index  aLondon Mathematical Society lecture note series, 42  a  a   a  00104070aISIbISId1998-09-09l0o512 J66.TTpDP16890r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a9745  c9745d9745