Water Pollution Control Federation (U.S.). (1979). WPCF wastewater treatment skill training package: Chlorination. Water Pollution Control Federation.
Citazione stile Chigago Style (17a edizione)Water Pollution Control Federation (U.S.). WPCF Wastewater Treatment Skill Training Package: Chlorination. Washington, D.C.: Water Pollution Control Federation, 1979.
Citatione MLA (8a ed.)Water Pollution Control Federation (U.S.). WPCF Wastewater Treatment Skill Training Package: Chlorination. Water Pollution Control Federation, 1979.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.