Cita APA (7a ed.)

Waterman, J. (2006). Straightforward: Intermediate workbook with key. Macmillan Education.

Cita Chicago Style (17a ed.)

Waterman, John. Straightforward: Intermediate Workbook with Key. Oxford: Macmillan Education, 2006.

Cita MLA (9a ed.)

Waterman, John. Straightforward: Intermediate Workbook with Key. Macmillan Education, 2006.