APA aipamena

United States. Federal Water Pollution Control Administration. (1970). The economics of clean water: Summary report. Govt. Pr..

Chicago Style aipamena

United States. Federal Water Pollution Control Administration. The Economics of Clean Water: Summary Report. Wash.: Govt. Pr., 1970.

MLA aipamena

United States. Federal Water Pollution Control Administration. The Economics of Clean Water: Summary Report. Govt. Pr., 1970.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.