TY - BOOK T1 - Variable azimuth Schlumberger resistivity sounding and profiling near a vertical contact, DA - c1969. DA - 1970. CY - Boston : CY - Washington, AU - Zohdy, Adel A. R., CN - QE75 CN - QE75 PB - Ginn and Company, PB - U.S. Govt. Print. Off., PP - Boston : PP - Washington, PY - c1969. PY - 1970. ID - 122358 KW - Electric prospecting. KW - Earth resistance (Geophysics) KW - Readers TI - Variable azimuth Schlumberger resistivity sounding and profiling near a vertical contact, ER -