Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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