Gaya APA

Koefoed, O. (1979). Geosounding Principles, 1, Resistivity Sounding Measurements : Methods in Geochemistry and Geophysics . Amsterdam: ELSEVIER SCIENTIFIC PUBLISHING COMPANY.

Gaya MLA

Koefoed, Otto. "Geosounding Principles, 1, Resistivity Sounding Measurements : Methods in Geochemistry and Geophysics". Amsterdam: ELSEVIER SCIENTIFIC PUBLISHING COMPANY, 1979. Text.