00577nam a2200193Ia 4500003000900000008004100009020001800050040001600068080001500084100001400099245013100113250001700244260003900261300001300300650001300313650002700326700001500353700001500368IN-BaIIA211028s9999    xx            000 0 eng d  a0-486-63281-4  cIIA Library  a519.4bMAG  aMagnus, W 0aCombinatorial group theorybpresentations of groups in terms of generators and relationscW. Magnus, A. Karrass and D. Solitar  a2nd rev. ed.  aNew YorkbDover Publicationsc1976  ax, 444p.  aCalculus  aNielsen Transformation  aKarrass, A  aSolitar, D