(1999). Potential environment hazards by detergents revealled. Philippine Star.
Dyfyniad Arddull Chicago"Potential Environment Hazards by Detergents Revealled." Philippine Star 1999.
Dyfyniad MLA"Potential Environment Hazards by Detergents Revealled." Philippine Star, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.