00303nam a2200109Ia 4500082002300000100004200023245002700065260003300092300002800125500000500153700003500158  a519.502455bJ86.MG  aJournel, A. G. and Huijbregts, Ch. J.  aMining geostatisticsb  aLondonbAcademic Pressc1978  ax, 600p. Indexes, Bibl.  a  aHuijbregts, Ch. J. ; jt. auth.