Richards, A. (1982). Egypt's agricultural development, 1800-1980: Technical and social change. Westview Press.
芝加哥风格引文Richards, Alan. Egypt's Agricultural Development, 1800-1980: Technical and Social Change. Boulder, Colo.: Westview Press, 1982.
MLA引文Richards, Alan. Egypt's Agricultural Development, 1800-1980: Technical and Social Change. Westview Press, 1982.
警告：这些引文格式不一定是100％准确.