Nicholson, Michael <br/><br/>
Formal theories in international relations 
Michael Nicholson 
 - Cambridge  Cambridge University Press  c1989 
 - xiii, 254 p. : ill. ; 24 cm 
<br/><br/><label>ISBN: </label>9780521399678 
<br/><br/><label>Dewey Class. No.: </label>327.101 NIC