Cita APA (7a ed.)

Hutchinson, T. (1992). Project english 1: Workbook (6a. ed.). Oxford University.

Cita Chicago Style (17a ed.)

Hutchinson, Tom. Project English 1: Workbook. 6a. ed. Oxford: Oxford University, 1992.

Cita MLA (9a ed.)

Hutchinson, Tom. Project English 1: Workbook. 6a. ed. Oxford University, 1992.