Swan, M. (2009). How english works: A grammar practice book with answers. Oxford: Oxford University Press.
Citação norma ChicagoSwan, Micheal. How English Works: A Grammar Practice Book With Answers. Oxford: Oxford University Press, 2009.
Citação norma MLASwan, Micheal. How English Works: A Grammar Practice Book With Answers. Oxford: Oxford University Press, 2009.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.