TY  - BOOK
AU  - Litvin, A. K.
AU  - Šuvalkin, V. V.
ED  - "Today's drilling and coring methods", seminar
TI  - Geologic information obtained by means of borehole geophysics
PY  - 1981///
CY  - M.
KW  - Москва
KW  - Д443.42
KW  - rubbk
ER  -