TY  - RPRT
TI  - Stratigraphy and geologic map of Tertiary coal-bearing deposits, Shirak region, northwestern Armenia
AU  - Todd A. Dallegge
AU  - Artur Martirosyan
AU  - Florian Maldonado
AU  - B.S. Pierce
PY  - 1999
DO  - 10.3133/ofr00159
UR  - https://pubs.usgs.gov/publication/ofr00159
ID  - ofr00159
ER  -