Cita APA (7a ed.)

Feldman, G. (2019). The gray zone: Sovereignty, human smuggling, and undercover police investigation in Europe. Stanford University Press.

Cita Chicago Style (17a ed.)

Feldman, Gregory. The Gray Zone: Sovereignty, Human Smuggling, and Undercover Police Investigation in Europe. Stanford, California: Stanford University Press, 2019.

Cita MLA (8a ed.)

Feldman, Gregory. The Gray Zone: Sovereignty, Human Smuggling, and Undercover Police Investigation in Europe. Stanford University Press, 2019.