Cita APA

Seidl, J., & Swan, M. (2000). Basic English usage: Exercises. Oxford: Oxford University Press.

Chicago Style Citation

Seidl, Jennifer., i Michael Swan. Basic English Usage: Exercises. Oxford: Oxford University Press, 2000.

Cita MLA

Seidl, Jennifer., i Michael Swan. Basic English Usage: Exercises. Oxford: Oxford University Press, 2000.

Atenció: Aquestes cites poden no estar 100% correctes.