Παραπομπή APA

Silverstein, M. (1990). The environmental factor: Its impact on the future of the world economy and your investments. s.l.: Longman Financial Services.

Παραπομπή Chicago Style

Silverstein, Michael. The Environmental Factor: Its Impact On the Future of the World Economy and Your Investments. s.l.: Longman Financial Services, 1990.

Παραπομπή MLA

Silverstein, Michael. The Environmental Factor: Its Impact On the Future of the World Economy and Your Investments. s.l.: Longman Financial Services, 1990.

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