TY  - BOOK
AU  - Oleksyshyn,John
TI  - Brown Coal Beds In the Vicinity of Zovkva and Rava Ruska, Ukraine
PY  - 1954///
CY  - Philadelphia
PB  - Jeferson Medical College
KW  - Geology
N1  - Reprinted from "Proceedings of the Pennsylvania Academy of Science",V.28, 1954
ER  -