TY  - BOOK
AU  - Pronov, A. P.
TI  - Materials in mining engineering
PY  - 1970///]
CY  - M.
PB  - "Higher school"
KW  - Москва
KW  - Тг-30
KW  - rubbk
KW  - ˆ[‰И-3]
ER  -