Cita APA (7th ed.)

Downi, M. (1998). Your Turn: Student's book 3 (1a. ed.). Richmond Publishing.

Cita Chicago (17th ed.)

Downi, Michael. Your Turn: Student's Book 3. 1a. ed. Buenos Aires: Richmond Publishing, 1998.

Cita MLA (9th ed.)

Downi, Michael. Your Turn: Student's Book 3. 1a. ed. Richmond Publishing, 1998.