H. J. de Blij. (1999). Human geography: Culture, society and space. New York: John Wiley and Sons.
शिकागो स्टाइल उद्धरणH. J. de Blij. Human Geography: Culture, Society and Space. New York: John Wiley and Sons, 1999.
एमएलए उद्धरणH. J. de Blij. Human Geography: Culture, Society and Space. New York: John Wiley and Sons, 1999.
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