Tordesillas, C. E. (2006). Insecticides: Are they safe or do they pose a bigger risk? Manila Times.
Citazione stile Chigago Style (17a edizione)Tordesillas, Cesar E. "Insecticides: Are They Safe or Do They Pose a Bigger Risk?" Manila Times 2006.
Citatione MLA (9a ed.)Tordesillas, Cesar E. "Insecticides: Are They Safe or Do They Pose a Bigger Risk?" Manila Times, 2006.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.