TY  - SER
AU  - Sperling, James
AU  - Webber,Mark
TI  - Trump’s foreign policy and NATO: Exit and voice
AV  - RIS 45:3 2019
PY  - 2019///
CY  - London
PB  - Cambridge University Press
UR  - http://dx.doi.org/10.1017/S0260210519000123
ER  -