(2001). National Irrigation Administration 38th Founding anniversary. Philippine Star.
Dyfyniad Arddull Chicago"National Irrigation Administration 38th Founding Anniversary." Philippine Star 2001.
Dyfyniad MLA"National Irrigation Administration 38th Founding Anniversary." Philippine Star, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.