TY  - GEN
AU  - Nicholson,Michael
AU  - Nicholson,Michael
TI  - Formal theories in international relations
AV  - JX1395.N49.1989 
PY  - 1989///
CY  - Cambridge : 
PB  -  Cambridge University Press, 
KW  - International relations
KW  - Mathematical Models
N1  - Cambridge studies in international relations xiii
ER  -