Cita APA (7th ed.)

Boyle, C., & Chersan, I. (2009). English for Law Enforcement: Student's Book. Macmillan.

Cita Chicago (17th ed.)

Boyle, Charles, i Ileana Chersan. English for Law Enforcement: Student's Book. Oxford: Macmillan, 2009.

Cita MLA (8th ed.)

Boyle, Charles, i Ileana Chersan. English for Law Enforcement: Student's Book. Macmillan, 2009.