APA引文

Elkhidir, E. E. (2003). Economic Efficiency of Sharecropping in Drylands: A Case Study of Gum Arabic Production in Kordofan Gum Belt, Sudan.

Chicago Style (17th ed.) Citation

Elkhidir, Elrashied Elimam. Economic Efficiency of Sharecropping in Drylands: A Case Study of Gum Arabic Production in Kordofan Gum Belt, Sudan. 2003.

MLA引文

Elkhidir, Elrashied Elimam. Economic Efficiency of Sharecropping in Drylands: A Case Study of Gum Arabic Production in Kordofan Gum Belt, Sudan. 2003.

警告：这些引文格式不一定是100％准确.