622.1828 Bar R Barsukov. Oleg Aleksandrovich Radioactive investigations of oil and gas wells, a textbook [by] O. A. Barsukov [and others] Tr. by J. O. H. Muhlhaus. English tr. ed. by N. Rast. Oxford, Pergamon Press, 1965 viii. 299 p. diagrs., tablas. 23 cm BibliografĂ­a al final de los capĂ­tulos.