00322nam a2200121Ia 4500082001700000100002100017245004300038260004900081300002000130490004000150500000500190700000500195  a516bL373.NT  aLaufer, Henry B.  aNormal two dimensional singularitiesb  aNew JerseybPrinceton University Pressc1971  axi, 161p. Index  aAnnals of Mathematics studies v 71  a  a