Cita APA (7a ed.)

Powell, M. (2002). In company: Intermediate. Macmillan Education.

Cita Chicago Style (17a ed.)

Powell, Mark. In Company: Intermediate. Basingstoke: Macmillan Education, 2002.

Cita MLA (9a ed.)

Powell, Mark. In Company: Intermediate. Macmillan Education, 2002.