Patra H.P
Geosounding principles - New York Elsevier scientificpublishing company 1980 - XV, 419p
0-444-41704-4
Propsecting-geo physical methods
Geosounding principles - New York Elsevier scientificpublishing company 1980 - XV, 419p
0-444-41704-4
Propsecting-geo physical methods