Lee U, P. (2002). Towards a national tax policy for E-commerce. Philippine APEC Study Center Network.
Citazione stile Chigago Style (17a edizione)Lee U, Peter. Towards a National Tax Policy for E-commerce. Makati City: Philippine APEC Study Center Network, 2002.
Citatione MLA (9a ed.)Lee U, Peter. Towards a National Tax Policy for E-commerce. Philippine APEC Study Center Network, 2002.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.