References
- Callinicos , Alex . 2007 . Does capitalism need the state system? . Cambridge Review of International Affairs , 20 ( 4 ) : 533 – 549 .
- Callinicos , Alex and Rosenberg , Justin . 2008 . Uneven and combined development: the social-relational substratum of “the international”? An exchange of letters . Cambridge Review of International Affairs , 21 ( 1 ) : 77 – 112 .
- Der Derian , James . 2003 . “ Hedley Bull and the case for a post-classical approach ” . In International relations at LSE: a history of 75 years , Edited by: Bauer , Harry and Brighi , Elisabetta . 61 – 94 . London : Millennium .