TY  - BOOK
AU  - Nikanorov, A. M.
ED  - "Today's drilling and coring methods", seminar
TI  - ˆThe ‰wire-line core drilling equipment and techniques
PY  - 1981///
CY  - M.
KW  - Москва
KW  - Тг162
KW  - rubbk
KW  - ˆ[‰И131-5]
ER  -