APA (7th ed.) Zitazioa

Sharman, E., Dean, M., Sikorzynska, A., & Mrozowska, H. (2006). New Opportunities, Education for life: Intermediate. Language Powerbook (1a. ed.). Pearson Education Limited.

Chicago Style (17th ed.) Zitazioa

Sharman, Elizabeth, Michael Dean, Anna Sikorzynska, eta Hanna Mrozowska. New Opportunities, Education for Life: Intermediate. Language Powerbook. 1a. ed. Essex: Pearson Education Limited, 2006.

MLA (9th ed.) Zitazioa

Sharman, Elizabeth, et al. New Opportunities, Education for Life: Intermediate. Language Powerbook. 1a. ed. Pearson Education Limited, 2006.