TY  - BOOK
AU  - Baškatov, D. N.
AU  - Kuz'min, I. V.
AU  - Bronnikov, I. D.
ED  - "Today's drilling and coring methods", seminar
TI  - General information about drilling
PY  - 1981///
CY  - Μ.
KW  - Т.162[И131]
KW  - rubbk
ER  -