APA-referens (7:e uppl.)
Crummey, D. (2000). Land and society in the Christian Kingdom of Ethiopia: From the thirteenth to the twentieth century. University of Illinois Press.
Chicago-referens (17:e uppl.)
Crummey, Donald. Land and Society in the Christian Kingdom of Ethiopia: From the Thirteenth to the Twentieth Century. Urbana: University of Illinois Press, 2000.
MLA-referens (9:e uppl.)
Crummey, Donald. Land and Society in the Christian Kingdom of Ethiopia: From the Thirteenth to the Twentieth Century. University of Illinois Press, 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.