APA (7th ed.) Citation

Johnson, D. H. (2004). The root causes of Sudan's civil wars (Updated 2. impr.). Currey [u.a.].

Chicago Style (17th ed.) Citation

Johnson, Douglas Hamilton. The Root Causes of Sudan's Civil Wars. Updated 2. impr. Oxford: Currey [u.a.], 2004.

MLA (9th ed.) Citation

Johnson, Douglas Hamilton. The Root Causes of Sudan's Civil Wars. Updated 2. impr. Currey [u.a.], 2004.