TY  - BOOK
AU  - Welt, Cory
ED  - Congressional Research Service
TI  - Ukraine: : Background, Conflict with Russia, and U.S. Policy
T2  - Congressional Research Service
PY  - 2019///
PB  - Congressional Research Service
KW  - Política y gobierno
KW  - Conflictos armados
KW  - Ucrania
KW  - Rusia
KW  - Estados Unidos
UR  - https://fas.org/sgp/crs/row/R45008.pdf
ER  -