Cita APA

(1987). Operation and maintenance of sludge dewatering systems: Manual of practice No. OM-8. Alexandria: World Health Organization (WHO).

Chicago Style Citation

Operation and Maintenance of Sludge Dewatering Systems: Manual of Practice No. OM-8. Alexandria: World Health Organization (WHO), 1987.

Cita MLA

Operation and Maintenance of Sludge Dewatering Systems: Manual of Practice No. OM-8. Alexandria: World Health Organization (WHO), 1987.

Atenció: Aquestes cites poden no estar 100% correctes.