International Labour Office. (1972). Technology for Freedom: Man in His Environment. Geneva: International Labour Office.
শিকাগো স্টাইলে সাইটেশনInternational Labour Office. Technology for Freedom: Man in His Environment. Geneva: International Labour Office, 1972.
এমএলএ সাইটেশনInternational Labour Office. Technology for Freedom: Man in His Environment. Geneva: International Labour Office, 1972.
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