Cita APA (7a ed.)

Downie, M. (1996). Freeform: Student's Book 3. Santillana.

Cita Chicago Style (17a ed.)

Downie, Michael. Freeform: Student's Book 3. Buenos Aires: Santillana, 1996.

Cita MLA (9a ed.)

Downie, Michael. Freeform: Student's Book 3. Santillana, 1996.