Παραπομπή APA

(1960). Water resources activities in the United States: Water supply and demand. Washington, D.C: Government Printing Office.

Παραπομπή Chicago Style

Water Resources Activities in the United States: Water Supply and Demand. Washington, D.C: Government Printing Office, 1960.

Παραπομπή MLA

Water Resources Activities in the United States: Water Supply and Demand. Washington, D.C: Government Printing Office, 1960.

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