hammam, e. e. d. (1963). economics of agricultural production and resource use. the institute of national planning.
芝加哥风格引文hammam, ezz el din. Economics of Agricultural Production and Resource Use. cairo: the institute of national planning, 1963.
MLA引文hammam, ezz el din. Economics of Agricultural Production and Resource Use. the institute of national planning, 1963.
警告：这些引文格式不一定是100％准确.