Cita APA (7th ed.)

Richardson, K. (2009). English for Law Enforcement: Teacher's Book. Macmillan.

Cita Chicago (17th ed.)

Richardson, Karen. English for Law Enforcement: Teacher's Book. Oxford: Macmillan, 2009.

Cita MLA (8th ed.)

Richardson, Karen. English for Law Enforcement: Teacher's Book. Macmillan, 2009.