Estall, R. C. (1973). Industrial activity and economic geography: A study of the forces behind the geographical location of productive activity in manufacturing industry. London: Hutchinson.
শিকাগো স্টাইলে সাইটেশনEstall, Robert C. Industrial Activity and Economic Geography: A Study of the Forces Behind the Geographical Location of Productive Activity in Manufacturing Industry. London: Hutchinson, 1973.
এমএলএ সাইটেশনEstall, Robert C. Industrial Activity and Economic Geography: A Study of the Forces Behind the Geographical Location of Productive Activity in Manufacturing Industry. London: Hutchinson, 1973.
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