Title from title screen (viewed September 15, 2014).
Also available online in PDF format from the U.S. Geological Survey Warehouse (http://pubs.er.usgs.gov/).
"New Techniques in direct-current resistivity exploration."
"Nomograms, curves, and tables simplify evaluation of geometric factors of azimuthal, perpendicular, and parallel bipole-dipole electrode arrangements for measuring electrical resitivities of the earth."