APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Conrad, Susan, and Douglas Biber. Real Grammar: A Corpus-based Approach to English. Nueva York: Pearson Education, 2009.

MLA (9th ed.) Citation

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