@book{UBHD-1051568, author={Wight, Martin}, title={Systems of states}, publisher={Univ. Pr.}, address={Leicester}, year={1977}, pages={232 S.}, language={eng}, isbn={0-7185-1153-0 and 978-0-7185-1153-1}, keywords={Internationales politisches System}, library={UB [Signatur: 77 A 705]}, }