Cita APA (7th ed.)

Johnson, C. (2002). Pre-Intermediate Business English: Test file. Pearson Education.

Cita Chicago (17th ed.)

Johnson, Christine. Pre-Intermediate Business English: Test File. Essex: Pearson Education, 2002.

Cita MLA (9th ed.)

Johnson, Christine. Pre-Intermediate Business English: Test File. Pearson Education, 2002.