01034nam a2200313 i 450099100097772970753620020507104647.0970225s1979 ne ||| | eng b10156434-39ule_instLE00640082ExLDip.to Fisicaita622.15452.9.352.9.38LC TN269Koefoed, O.461102Geosounding principles /O. Koefoed, H.P. Patra and K. MallickAmsterdam :Elsevier,1979-802 v. :ill. ;25 cm.Includes bibliographies and index.Prospecting-Geophysical methodsPatra, H.P.Mallick, K..b1015643401-03-2227-06-02991000977729707536LE006 52.9.3 KOEV. 112006000187893le006-E0.00-l- 00000.i1018903827-06-02Geosounding principles187300UNISALENTOle00601-01-97ma -engne 01