Lehdonvirta, V., Barnard, H., Graham, M., & Hjorth, I. (2014). Online labour markets - levelling the playing field for international service markets? Oxford Internet Institute.
Cita Chicago (17th ed.)Lehdonvirta, V., H. Barnard, M. Graham, i I. Hjorth. Online Labour Markets - Levelling the Playing Field for International Service Markets? Oxford Internet Institute, 2014.
Cita MLA (9th ed.)Lehdonvirta, V., et al. Online Labour Markets - Levelling the Playing Field for International Service Markets? Oxford Internet Institute, 2014.
Atenció: Aquestes cites poden no estar 100% correctes.