David, M. I. How the iPhone challenged and changed our lives. IN Lifestyle. Manila Bulletin.
Citazione stile Chigago Style (17a edizione)David, Mark Isaiah. "How the IPhone Challenged and Changed Our Lives. IN Lifestyle." Manila Bulletin .
Citatione MLA (9a ed.)David, Mark Isaiah. "How the IPhone Challenged and Changed Our Lives. IN Lifestyle." Manila Bulletin, .
Attenzione: Queste citazioni potrebbero non essere precise al 100%.