APA (7th ed.) Citation

O'Connell, S. (1995). Focus on proficiency (Full colour ed.). Longman.

Chicago Style (17th ed.) Citation

O'Connell, Sue. Focus on Proficiency. Full colour ed. Harlow: Longman, 1995.

MLA (9th ed.) Citation

O'Connell, Sue. Focus on Proficiency. Full colour ed. Longman, 1995.

Warning: These citations may not always be 100% accurate.