00312nam a2200109Ia 4500008004100000082001700041100002900058245002400087260003600111300001600147440003900163260902b        |||||||| |||| 00| 0 eng d  a512bW274.NG  aWarfield, Robert B., Jr.  aNilpotent groupsb/  aBerlin:bSpringer-Verlag,c1976  aviii, 115p.  aLecture notes in Mathematics ; 513