Cita APA (7a ed.)

Schettkat, R., Salverda, W., & Gregory, M. (2007). Services and Employment: Explaining the U.S.-European Gap. Princeton University Press.

Cita Chicago Style (17a ed.)

Schettkat, Ronald, Wiemer Salverda, y Mary Gregory. Services and Employment: Explaining the U.S.-European Gap. Oxford: Princeton University Press, 2007.

Cita MLA (8a ed.)

Schettkat, Ronald, et al. Services and Employment: Explaining the U.S.-European Gap. Princeton University Press, 2007.