Cita APA

Swan, M., & Seidl, J. (1986). Basic English usage. Oxford: Oxford University Press.

Chicago Style Citation

Swan, Michael., i Jennifer Seidl. Basic English Usage. Oxford: Oxford University Press, 1986.

Cita MLA

Swan, Michael., i Jennifer Seidl. Basic English Usage. Oxford: Oxford University Press, 1986.

Atenció: Aquestes cites poden no estar 100% correctes.