Cruz-Ferreira, M., & Abraham, S. A. (2012). Lang101: Linguistics exercises & activities for starters : 460 commented exercises & activities. CreateSpace.
Citazione stile Chigago Style (17a edizione)Cruz-Ferreira, Madalena, e Sunita Anne Abraham. Lang101: Linguistics Exercises & Activities for Starters : 460 Commented Exercises & Activities. USA: CreateSpace, 2012.
Citatione MLA (8a ed.)Cruz-Ferreira, Madalena, e Sunita Anne Abraham. Lang101: Linguistics Exercises & Activities for Starters : 460 Commented Exercises & Activities. CreateSpace, 2012.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.