APA (7e ed.) Bronvermelding

Salud, J. P. (2014). Ecoshield's engineered sanitary landfill: Technology whose time has come. Philippine Graphic.

Chicago (17e ed.) Bronvermelding

Salud, Joel Pablo. "Ecoshield's Engineered Sanitary Landfill: Technology Whose Time Has Come." Philippine Graphic 2014.

MLA (9e ed.) Bronvermelding

Salud, Joel Pablo. "Ecoshield's Engineered Sanitary Landfill: Technology Whose Time Has Come." Philippine Graphic, 2014.

Let op: Deze citaties zijn niet altijd 100% accuraat.