U, P. L. (2006). Toward a national tax policy for E-commerce. Philippine APEC Study Center Network.
Cita Chicago Style (17a ed.)U, Peter Lee. Toward a National Tax Policy for E-commerce. Makati City: Philippine APEC Study Center Network, 2006.
Cita MLA (9a ed.)U, Peter Lee. Toward a National Tax Policy for E-commerce. Philippine APEC Study Center Network, 2006.
Precaución: Estas citas no son 100% exactas.