Bogaard, J. (2000). New Happy Days 2. Interactive english (1a. ed.). Richmond Publishing.
Cita Chicago Style (17a ed.)Bogaard, Jeannine. New Happy Days 2. Interactive English. 1a. ed. Buenos Aires: Richmond Publishing, 2000.
Cita MLA (9a ed.)Bogaard, Jeannine. New Happy Days 2. Interactive English. 1a. ed. Richmond Publishing, 2000.
Precaución: Estas citas no son 100% exactas.