TY  - BOOK
AU  - Nicholson, Michael,
TI  - Formal theories in international relations
T2  - Cambridge studies in international relations
SN  - 0521341035
U1  - 327.101 
PY  - 1989///
CY  - Cambridge
PB  - Cambridge University Press
KW  - International relations.---
N1  - Includes index
ER  -