Παραπομπή APA

(1991). Design of municipal wastewater treatment plants. Alexandria, VA: New York, NY: Water Environment Federation American Society of Civil Engineers.

Παραπομπή Chicago Style

Design of Municipal Wastewater Treatment Plants. Alexandria, VA: New York, NY: Water Environment Federation American Society of Civil Engineers, 1991.

Παραπομπή MLA

Design of Municipal Wastewater Treatment Plants. Alexandria, VA: New York, NY: Water Environment Federation American Society of Civil Engineers, 1991.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.