Cita APA

Harris, M., Mower, D., & Sikorzynska, A. (2006). New Opportunities, education for life: Intermediate. Students' Book (2a. ed.). Pearson Education Limited.

Citación estilo Chicago

Harris, Michael, David Mower, and Anna Sikorzynska. New Opportunities, Education for Life: Intermediate. Students' Book. 2a. ed. Essex: Pearson Education Limited, 2006.

Cita MLA

Harris, Michael, et al. New Opportunities, Education for Life: Intermediate. Students' Book. 2a. ed. Pearson Education Limited, 2006.