(1997). Industrial ecowatch: DENR's new compliance monitoring system. Manila Times.
Chicago (17e ed.) Bronvermelding"Industrial Ecowatch: DENR's New Compliance Monitoring System." Manila Times 1997.
MLA (9e ed.) Bronvermelding"Industrial Ecowatch: DENR's New Compliance Monitoring System." Manila Times, 1997.
Let op: Deze citaties zijn niet altijd 100% accuraat.