Boehm, R. G. (1995). Glencoe world geography: A physical and cultural approach. New Yok: Mc-Graw Hill.
शिकागो स्टाइल उद्धरणBoehm, Richard G. Glencoe World Geography: A Physical and Cultural Approach. New Yok: Mc-Graw Hill, 1995.
एमएलए उद्धरणBoehm, Richard G. Glencoe World Geography: A Physical and Cultural Approach. New Yok: Mc-Graw Hill, 1995.
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