00325nam a2200109Ia 4500082002000000100004400020245005800064260003500122300002000157500000500177700003300182  a515.35bC316.PD  aCarrier, George F. and Pearson, Carl E.  aPartial differential equations theory and techniqueb  aNew YorkbAcademic Pressc1976  axi, 320p. Index  a  aPearson, Carl E. ; jt. auth.