Gaya APA
Bjola, C., Kornprobst, M. (2013).
Understanding international diplomacy: theory, practice and ethics .
London:
Routledge.
Gaya MLA
Bjola, Corneliu., Kornprobst, Markus.
"Understanding international diplomacy: theory, practice and ethics".
London:
Routledge,
2013.
Buku Elektronik.