TY  - BOOK
AU  - Woehrel, Steven 
ED  - Congressional Research Service
TI  - Ukraine: : Current Issues and U.S. Policy
PY  - 2014///
PB  - Congressional Research Service
KW  - Geopolítica
KW  - Estados Unidos
KW  - Ucrania
UR  - http://www.fas.org/sgp/crs/row/RL33460.pdf
ER  -