APA Style

Hoffmann, T. et al (c2009). World Englishes--problems, properties and prospects: selected papers from the 13th IAWE conference . Netherland: John Benjamins Pub. Co..

MLA Style

Hoffmann, Thomas. et al. "World Englishes--problems, properties and prospects: selected papers from the 13th IAWE conference". Netherland: John Benjamins Pub. Co., c2009. E-Book.