a. (1996). World Resousces 1996 - 97: The urban environment. New York: Oxford university Oxford.
Trích dẫn kiểu Chicagoa. World Resousces 1996 - 97: The Urban Environment. New York: Oxford university Oxford, 1996.
MLA Citationa. World Resousces 1996 - 97: The Urban Environment. New York: Oxford university Oxford, 1996.
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