RICHARDS, A. (1982). Egypt's agricultural development, 1800-1980: Technical and social change. Westview Press.
Chicago-referens (17:e uppl.)RICHARDS, Alan. Egypt's Agricultural Development, 1800-1980: Technical and Social Change. Boulder: Westview Press, 1982.
MLA-referens (9:e uppl.)RICHARDS, Alan. Egypt's Agricultural Development, 1800-1980: Technical and Social Change. Westview Press, 1982.
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