APA aipamena

O'connell, S. (2002). Focus on IELTS: Teacher's Book. Harlow, England: Long man, Pearson Education.

Chicago Style aipamena

O'connell, Sue. Focus On IELTS: Teacher's Book. Harlow, England: Long man, Pearson Education, 2002.

MLA aipamena

O'connell, Sue. Focus On IELTS: Teacher's Book. Harlow, England: Long man, Pearson Education, 2002.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.