APA (7th ed.) Citation

Conrad, S., & Biber, D. (2009). Real grammar: A corpus-based approach to English. Pearson/Longman.

Chicago Style (17th ed.) Citation

Conrad, Susan, and Douglas Biber. Real Grammar: A Corpus-based Approach to English. White Plains, NY: Pearson/Longman, 2009.

MLA (9th ed.) Citation

Conrad, Susan, and Douglas Biber. Real Grammar: A Corpus-based Approach to English. Pearson/Longman, 2009.