Cita APA (7th ed.)

Baigent, M. (2004). Natural English: Reading writing skills : upper-intermediate resource book. Oxford University Press.

Cita Chicago (17th ed.)

Baigent, Maggie. Natural English: Reading Writing Skills : Upper-intermediate Resource Book. Oxford: Oxford University Press, 2004.

Cita MLA (8th ed.)

Baigent, Maggie. Natural English: Reading Writing Skills : Upper-intermediate Resource Book. Oxford University Press, 2004.