Duffield, M. (1990). Sudan at the crossroads: From emergency preparedness to social security.
Chicago-Zitierstil (17. Ausg.)Duffield, Mark. Sudan at the Crossroads: From Emergency Preparedness to Social Security. Brighton, 1990.
MLA-Zitierstil (9. Ausg.)Duffield, Mark. Sudan at the Crossroads: From Emergency Preparedness to Social Security. 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.