Gaya APA

COMMISSION, M, S. (1986). Water pollution control (module 4 industrial wastewater treatment): work unit 3 physical treatment processes . : Her Majesty's Stationary Office.

Gaya MLA

COMMISSION, MANPOWER, SERVICES. "Water pollution control (module 4 industrial wastewater treatment): work unit 3 physical treatment processes". : Her Majesty's Stationary Office, 1986. Laporan.