APA (7th ed.) Citation

Koefoed, O. Geosounding principles, 1 resistivity sounding measurements. Elsevier Scientific Publishing Company.

Chicago Style (17th ed.) Citation

Koefoed, Otto. Geosounding Principles, 1 Resistivity Sounding Measurements. Elsevier Scientific Publishing Company.

MLA (8th ed.) Citation

Koefoed, Otto. Geosounding Principles, 1 Resistivity Sounding Measurements. Elsevier Scientific Publishing Company.

Warning: These citations may not always be 100% accurate.