Schmookler, J. (1972). Patents, Invention, and Economic Change: Data and Selected Essays. Cambridge: Harvard University Press.
শিকাগো স্টাইলে সাইটেশনSchmookler, Jacob. Patents, Invention, and Economic Change: Data and Selected Essays. Cambridge: Harvard University Press, 1972.
এমএলএ সাইটেশনSchmookler, Jacob. Patents, Invention, and Economic Change: Data and Selected Essays. Cambridge: Harvard University Press, 1972.
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