Παραπομπή APA

(1972). The economic impact of pollution control: A summary of recent studies. Washington, D.C: U.S. Government Printing Office.

Παραπομπή Chicago Style

The Economic Impact of Pollution Control: A Summary of Recent Studies. Washington, D.C: U.S. Government Printing Office, 1972.

Παραπομπή MLA

The Economic Impact of Pollution Control: A Summary of Recent Studies. Washington, D.C: U.S. Government Printing Office, 1972.

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