Cita APA (7a ed.)

Martin, D., & Guild, E. (1996). Free movement of persons in the European Union. Butterworths.

Cita Chicago Style (17a ed.)

Martin, Denis, y Elspeth Guild. Free Movement of Persons in the European Union. London [etc.]: Butterworths, 1996.

Cita MLA (9a ed.)

Martin, Denis, y Elspeth Guild. Free Movement of Persons in the European Union. Butterworths, 1996.