The wire-line core drilling equipment and techniques, Seminar "Today's drilling a. coring methods", [Donetsk, 1981]
Т27 Д-4/30 английский/The wire-line core drilling equipment and techniques : Seminar "Today's drilling a. coring methods", [Donetsk, 1981] / A. M. Nikanorov ; UN Econ. commiss. for Asia a. Oceania a. State comm. of the USSR for external econ. relations.The wire-line core drilling equipment and techniques : Seminar "Today's drilling a. coring methods", [Donetsk, 1981] / A. M. Nikanorov.The wire-line core drilling equipment and techniques : Seminar "Today's drilling a. coring methods", [Donetsk, 1981].M./, 1981 ( ). - 1981. - 15 с. ; 21 см см.The wire-line core drilling equipment and techniques : Seminar "Today's drilling a. coring methods", [Donetsk, 1981]. M., 1981 .Тг162/[И131-5]/"Today's drilling and coring methods", seminar (; 1981; Donetsk)/