Tyson, L. D. (1988). The dynnamics of trade and employment. Cambridge: Ballinger Publishing Company.
शिकागो स्टाइल उद्धरणTyson, Laura D'andrea. The Dynnamics of Trade and Employment. Cambridge: Ballinger Publishing Company, 1988.
एमएलए उद्धरणTyson, Laura D'andrea. The Dynnamics of Trade and Employment. Cambridge: Ballinger Publishing Company, 1988.
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