Cita APA (7a ed.)

Quah, D. T. (2003). Digital goods and the new economy. Centre for Economic Performance.

Cita Chicago Style (17a ed.)

Quah, Danny T. Digital Goods and the New Economy. London: Centre for Economic Performance, 2003.

Cita MLA (9a ed.)

Quah, Danny T. Digital Goods and the New Economy. Centre for Economic Performance, 2003.